Merriam-Webster Collegiate Dictionary - coordinate

 I. adjective  Etymology: probably back-formation from coordination  Date: 1641  1.  a. equal in rank, quality, or significance  b. being of equal rank in a sentence ~ clauses  2. relating to or marked by coordination  3.  a. being a university that awards degrees to men and women taught usually by the same faculty but attending separate classes often on separate campuses  b. being one of the colleges and especially the women's branch of a ~ university  4. of, relating to, or being a system of indexing by two or more terms so that documents may be retrieved through the intersection of index terms  • ~ly adverb  • ~ness noun  II. verb  (-nated; -nating)  Date: 1665  transitive verb  1. to put in the same order or rank  2. to bring into a common action, movement, or condition ; harmonize we need to ~ our schedules  3. to attach so as to form a coordination complex  intransitive verb  1. to be or become ~ especially so as to act together in a smooth concerted way  2. to combine by means of a ~ bond  • coordinative adjective  • coordinator noun  III. noun  Date: 1806  1.  a. any of a set of numbers used in specifying the location of a point on a line, on a surface, or in space  b. any one of a set of variables used in specifying the state of a substance or the motion of a particle or momentum  2. one who is of equal rank, authority, or importance with another  3. plural articles (as of clothing) designed to be used together and to attain their effect through pleasing contrast (as of color, material, or texture)