simple past tense and past participle of function

present participle of function

Functional, working / (euphemistic, of a person) Mentally disabled but still able to survive in wider society.

Action of the verb function. / Manner by which something functions; the workings.

Third-person singular simple present indicative form of function

plural of function

(logic, mathematics) A function that is equivalent to the NOT operator.

plural of functioning

what something is intended to be used for; purpose

(mathematics) A linear mapping from a vector space to its field of scalars.