collaboration

UK: /kəˌlæbəˈreɪʃ^ən/

US: /kəˌlæbəˈreɪʃən/

US: (kə lab′ə rā′shən)

WordReference Random House Unabridged Dictionary of American English © 2026

col•lab•o•ra•tion  (kə lab′ə rā′shən), n. 

1. the act or process of collaborating.
2. a product resulting from collaboration:
   This dictionary is a collaboration of many minds.

• Late Latin collabōrāt(us) (see collaborate) + French -ion -ion
• French
• 1855–60

Collins Concise English Dictionary © HarperCollins Publishers::

collaboration / kəˌlæbəˈreɪʃən/ noun

1. often followed by on, with, etc: the act of working with another or others on a joint project
2. something created by working jointly with another or others
3. the act of cooperating as a traitor, esp with an enemy occupying one's own country

colˌlaboˈrationist noun

WordReference Random House Learner's Dictionary of American English © 2026

col•lab•o•rate /kəˈlæbəˌreɪt/   v., -rat•ed, -rat•ing. 

1. to work together; cooperate, as on writing a book, etc.: [no object; (~ + on + object)]
   The two writers collaborated on the script.
   [~ + with]
   He collaborated with Ira Gershwin.
2. to cooperate with an enemy nation, esp. with an enemy occupying one's country:
   [no object* (~ + with + object)] guilty of collaborating; found guilty of collaborating with the enemy.

col•lab•o•ra•tion /kəˌlæbəˈreɪʃən/  n. [uncountable]
col•lab•o•ra•tive /kəˈlæbəˌreɪtɪv, -ərətɪv/  adj. 
col•lab•o•ra•tor, n. [countable] See -lab-.

WordReference Random House Unabridged Dictionary of American English © 2026

col•lab•o•rate  (kə lab′ə rāt′), v.i., -rat•ed, -rat•ing. 

1. to work, one with another;
   cooperate, as on a literary work:
   They collaborated on a novel.
2. to cooperate, usually willingly, with an enemy nation, esp. with an enemy occupying one's country:
   He collaborated with the Nazis during World War II.

• Late Latin collabōrātus (past participle of collabōrāre), equivalent. to col- col-¹ + labor work + -ātus -ate¹
• 1870–75

col•lab′o•ra′tor, n. 
Synonyms

• 2. collude, join, assist, abet.