A criminal who cooperates with police or government authorities and testifies against or provides harmful information on fellow criminals; a turncoat or informant, usually a former Mafioso.

(pharmacology) A human monoclonal antibody used to treat cancer.

(informal) Contraction of Cincinnati. (city in Ohio)

(dialectal, chiefly Northern England, Scotland) To recall to mind; remember; recollect. / (reflexive, dialectal, chiefly Northern England, Scotland) To consider; think about; bethink.