[¶ 1.] Major William G. Lillibridge (Lil-libridge) was hired to be the Marine Corps JROTC1 (MCJROTC) instructor for the Sturgis Brown High School in Sturgis, South Dakota. When Lilli-bridge’s contract was non-renewed by the Meade School District School Board (School District), he claimed he was entitled to a due process hearing detailed in *430the negotiated agreement between the School District and the Meade Education Association (MEA). After the School Board denied his request, Lillibridge filed a grievance with the Department of Labor (Department), which ruled in his favor. The circuit court reversed the Department, finding Lillibridge was not a “certificated employee” and therefore, not covered by the negotiated agreement. He appeals and we affirm.
FACTS
[¶ 2.] During the summer of 1996, the Meade School District hired Lillibridge to institute and instruct the MCJROTC program for Sturgis Brown High School. Lil-libridge is a retired major with the Marine Corps and served for twenty-six years. While Lillibridge has a Masters Degree in Educational Administration, he does not hold a teaching certificate from the South Dakota Department of Education, nor has he ever held such certification. Instead, the Marine Corps provided its certification before it would approve of Lillibridge as an instructor of the MCJROTC program.
[¶ 3.] Lillibridge was not placed on the same pay scale as the other teachers. Rather, his salary was set by the Marines Corps. The Marines required Lillibridge to receive the same salary as he would if he were an active duty Major. Since Lilli-bridge was retired, his retirement pay was deducted from this salary. Then, the School District was responsible for one half of the difference between Lillibridge’s retirement pay and salary for an active duty Major, while the Marines were responsible for the other one half of the difference. For example, in 1996, an active duty Major’s salary was $5,102.13 per month and Lillibridge received $2,254 per month in retirement pay.2 Of the difference between the two, $2,848.13, the School District was responsible for one half, or $1,424.06 per month. While only responsible for the $1,424.06 per month, the School District paid the entire $5,102.13 and was then reimbursed $3,678.07 for the Marines’ monthly share. Lillibridge’s raises were on par with the raises of other teachers with Masters Degrees, but his salary was not determined by the teacher salary schedule contained within the negotiated agreement.
[¶ 4.] At some point, Lillibridge joined the MEA. All the negotiations of teachers’ salaries, benefits and schedules with the School District are to be conducted by the MEA. Despite this agreement, School District claimed Lillibridge negotiated with Dr. Barry W. Furze, superintendent, and Mr. Richard Deaver, principal, regarding his salary. Lillibridge denies negotiating for an increase in salary, yet the record reflects Lillibridge discussed and received a $3,100 raise for his work with outside classroom activities.
[¶ 5.] In May of 2005, Mr. Heinert3 informed Lillibridge that his contract would not be renewed for the 2005-2006 school year. The termination notice notified Lillibridge that he “may have access to all of [his] employment records and [he] may, upon written request, appear before the School Board in executive session at its next regular meeting on June 14, 2005 to make a statement concerning the Board’s intent to terminate your employment.” It also notified that he had the right to be represented.
[¶ 6.] Lillibridge obtained counsel through the MEA and rejected the offer to attend the Board meeting. Instead, he filed a grievance with the superintendent. *431He claimed he was “a regularly employed certificated personnel,”4 the negotiated agreement applied to him and therefore, he was entitled to a due process hearing outlined in Appendix D of the negotiated agreement.5 The superintendent denied his grievance, so Lillibridge filed a grievance with the Department of Labor.
[¶7.] A hearing was held before an Administrative Law Judge (ALJ). Lilli-bridge claimed he was “certificated personnel” because he was certified by the Marines to teach the MCJROTC. The School District argued that “certificated personnel” means teachers who hold a teaching certificate from the South Dakota Department of Education. The ALJ found in favor of Lillibridge, set aside the School District’s decision to terminate his contract and reinstated his fulltime contract. Moreover, Lillibridge was awarded all back pay and back benefits, plus interest.
[¶ 8.] The School District appealed to the circuit court, which reversed the ALJ and found in favor of the School District. The circuit court held that Lillibridge could not be “certificated personnel” because he did not hold a teaching certificate. Lillibridge appeals.
STANDARD OF REVIEW
[¶ 9.] This case involves the interpretation of a clause within the negotiated agreement between MEA and School District. “The contracts negotiated between public school districts and teachers are like any other collective bargaining agreement, and disputes over the agreement are resolved with reference to general contract law.” Wessington Springs Educ. Ass’n v. Wessington Springs Sch. Dist. #36-2, 467 N.W.2d 101, 104 (S.D. 1991) (additional citation omitted). Contract interpretation is a question of law reviewed de novo. Hanson v. Vermillion Sch. Dist. #13-1, 2007 SD 9, ¶24, 727 N.W.2d 459, 467 (additional citations omitted).
[¶ 10.] Whether the circuit court erred when it determined the School District did not violate, misinterpret or inequitably apply its negotiated agreement when it terminated Lilli-bridge’s contract.
[¶ 11.] Lillibridge argues that the circuit court erred when it reversed the ALJ because he had a certificate from the Marines to teach the MCJROTC program. School District claims that the Marines certificate is irrelevant and the only certificate that designates an employee “certificated personnel” is a teaching certificate. Lillibridge claims the School District’s interpretation of the contract is erroneous because it attempts to add words to the contract. He claims that the term certificated personnel is undefined and the plain meaning of the utilized language indicates *432that any certificate qualifies someone as “certificated personnel.”
[¶ 12.] When determining the meaning of a contract, “effect will be given to the plain meaning of its words.” In re Dissolution of Midnight Star, 2006 SD 98, ¶ 12, 724 N.W.2d 334, 337 (additional citation omitted). “We must ‘give effect to the language of the entire contract and particular words and phrases are not interpreted in isolation.’ ” Id. (additional citation omitted). We look “to the language that the parties used in the contract to determine their intention.” Pauley v. Simonson, 2006 SD 73, ¶ 8, 720 N.W.2d 665, 667-68. If the parties’ intention is made clear by the language of the contract “it is the duty of this Court to declare and enforce it.” Id. “However, if the contract ‘is uncertain or ambiguous,’ parol and extrinsic evidence may be used for clarification.” Id. (quoting Jensen v. Pure Plant Food Intern., Ltd., 274 N.W.2d 261, 263-64 (S.D.1979)).
[¶ 13.] The ALJ and the circuit court both declared the language used in the negotiated agreement was clear and unambiguous. Whether a term in a contract is ambiguous is a question of law reviewed de novo. In re J.D.M.C., 2007 SD 97, ¶ 30, 739 N.W.2d 796 (citing Canyon Lake Park, L.L.C. v. Loftus Dental, P.C., 2005 SD 82, ¶ 18, 700 N.W.2d 729, 734) (additional citation omitted). “A contract is ambiguous only when it is capable of more than one meaning when viewed objectively by a reasonably intelligent person who has examined the context of the entire integrated agreement.” Pauley, 2006 SD 73, ¶ 8, 720 N.W.2d at 668. If there is an ambiguity, “parol and extrinsic evidence may be utilized ‘to show what [the parties] meant by what they saidId.
[¶ 14.] Despite the ALJ’s and circuit court’s determination that the language “certificated personnel” is unambiguous and clear; the term is somewhat ambiguous as to who must perform the certification. While certificated means “to testify to or authorize by certificate”6 it is unclear whether a person is “certificated personnel” if they are certified by a separate entity to perform their job, such as the food service director, school nurse, attorney, accountant, etc, or if they are “certificated personnel” only if certified by the State Department of Education as a teacher. The words regarding who conducts the certification are capable of more than one meaning when viewed objectively, thus an ambiguity exists.
[¶ 15.] Since there is an ambiguity, we can examine extrinsic evidence to determine the intentions of the parties. When examining the document and the evidence, we conclude that “certificated personnel” means persons holding a teaching certificate issued by the South Dakota Department of Education and not a person holding a general certificate from a different entity.
[¶ 16.] First, there was testimony that Lillibridge negotiated his own salary increases, which would be prohibited by the MEA as it is the sole bargaining unit for its members. He claims that he did not negotiate his own salary, but the record reflects he asked the superintendent and principal for and received $3,100 extra duty pay based on his extra activities. Furthermore, his contract simply read “contract” and not “teacher contract.” He was never placed on the teacher pay schedule. He was evaluated only once a *433year and the second and third evaluations were on the same forms used for teachers, but the fourth evaluation was conducted on a form provided by the Marines, while his first evaluation was entitled “non-certifíed personnel evaluation” staff and the last evaluation was entitled “support staff evaluation form.” Under the negotiated agreement, a teacher must be evaluated twice a year using exclusively the MEA forms.
[¶ 17.] Therefore, the negotiated agreement and the parties’ actions demonstrate that the parties did not intend “certificated personnel” to include everyone who possesses a certificate for their profession. Instead, the language means a person who holds a teaching certificate from the South Dakota Department of Education.
[¶ 18.] Even if we consider “certificated personnel” unambiguous, as the parties urge, we reach the same result. The term “certificated personnel” used in this document means personnel possessing a teaching certificate. The common usage of “certificated” is typically in reference to teaching and specifically, persons holding a teaching certificate. As one court found, “the terms [teacher or certificated employee] are well understood in the education community. The terms are generally interchangeable. Teachers are certificated employees because they must possess a state teacher’s certificate in order to be permitted to teach in the public schools.” Byrn v. Metropolitan Bd. of Public Educ., 1991 WL 7806, at *8 (Tenn.Ct.App.1991) (unreported) (emphasis added). When an education association and school district enter into a contract, it makes sense that certificated personnel means a teacher who holds a teaching certificate and not a person who holds a generic certificate qualifying them to perform their job, but not authorizing their teaching.
[¶ 19.] To construe certificated personnel in the manner urged by Lilli-bridge would produce an “absurd result” according to counsel for School District, who argues that Lillibridge’s interpretation would mean that anyone holding some sort of certificate for their job, such as the school attorney, school nurse, school lunch supervisor, or even a custodian with a boiler operator certificate would be included within the collective bargaining unit of the Education Association.7 We do not give contracts such broad interpretations as to produce an absurd result. Kling v. Stern, 2007 SD 51, ¶8, 733 N.W.2d 615, 618 n. 3. As the circuit court noted:
A contract is interpreted “according to the natural and obvious import of the language, without resulting to subtle and forced construction for the purpose of either limiting or extending their operation.” Citibank (S.D.), N.A. v. Hauff, 2003 SD 99, ¶ 12, 668 N.W.2d 528, 533 (citations and quotations omitted). Here the natural and obvious import of the language of the Negotiated Agreement does not automatically extend to individuals who hold a certificate for his or her respective profession.
[¶ 20.] Lillibridge does not fall under the negotiated agreement as he does not have *434a teaching certificate and therefore, was not “certificated personnel.” We affirm the circuit court.
[¶ 21.] GILBERTSON, Chief Justice, concur. [¶ 22.] KONENKAMP, ZINTER and MEIERHENRY, Justices, concur in result.. Junior Reserve Officers' Training Corps.
. Figures come from the Department of Labor hearing Petitioner Exhibit 2.
. When Mr. Furze left the district, Mr. Hei-nert took his place as superintendent.
. The clause provides:
Pursuant to the provision of SDCL ch 3-18, the School Board of School District 46-1, Meade County, South Dakota, hereinafter referred to as the “Board,'' recognizes Meade Education Association hereinafter referred to as the “Association,” as the sole and exclusive representative for all regularly employed certificated personnel, hereinafter referred to as "Employee,” except for the Superintendent, Business Manager, Principals, Assistant Principals, Director of Community Education/Curriculum Coordinator, Director of Special Services, Activities Director, and any future position established by the Board where the person filling the position is required by the State of South Dakota, either by law or regulation to have an administrative endorsement.
. The pertinent clause of Appendix D provides that "[t]he legal provisions applying to termination and non-renewal of a teacher's contract are contained in SDCL 13-43-6.1 to SDCL 13-43-6.6, inclusive.”
. Definition found at Merriam Webster Online Dictionary, located at www.m-w.com (last accessed on February 26, 2008).
. During a hearing in a related case, Meade Education Association v. Meade School District, 2008 SD 18, 746 N.W.2d 434, the president of the MEA, Mary Maher, testified that it was her and the MEA’s position that any person holding a certificate, including all of the positions mentioned in paragraph 19, would be “regularly employed certificated personnel” and therefore, were part of the MEA’s bargaining unit and covered under the negotiated agreement between School District and the MEA. This was her testimony even though some of the positions like nurses and attorneys actually require licenses or some of the positions were actually hourly and not salaried contractual positions. See e.g. Meade Educ. Assoc. v. Meade Sch. Dist., 2008 SD 18, 746 N.W.2d 434.