colleague UK /ˈkɒliːɡ/US /ˈkɑliɡ/noun 1verb 1forms 3 noun1 •a person you work with, in the same company or the same kind of job verb1 •To unite or associate with another or with others.Young Fortinbras, Holding a weak supposal of our worth ...Colleagued with the dream of his advantage, ...hath not failed to pester us with message Importing the surrender of those lands Lost by his father. - Hamlet (Act I, Scene 2) formscolleagued · colleaguing · colleagues