[n., adv. koh-op; v. koh-op, koh-op] 
noun, verb, -oped, -op⋅ing, adverb | 1. | a cooperative store, dwelling, program, etc. |
| 2. | to place in a cooperative arrangement, esp. to convert (an apartment or building) to a cooperative. |
| 3. | go co-op, to convert to a cooperative: Our apartment building is going co-op. |
[koh-op-er-uh-tiv, -op-ruh-tiv, -op-uh-rey-tiv] | 1. | working or acting together willingly for a common purpose or benefit. |
| 2. | demonstrating a willingness to cooperate: The librarian was cooperative in helping us find the book. |
| 3. | pertaining to economic cooperation: a cooperative business. |
| 4. | involving or denoting an educational program comprising both classroom study and on-the-job or technical training, esp. in colleges and universities. |
| 5. | a jointly owned enterprise engaging in the production or distribution of goods or the supplying of services, operated by its members for their mutual benefit, typically organized by consumers or farmers. |
| 6. | Also called co-op, cooperative apartment.
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| co-op (kō'ŏp', kō-ŏp') n. A cooperative. |
| co-op cooperative |