verb-intransitive. To flow or run over the top, brim, or banks.verb-intransitive. To be filled beyond capacity, as a container or waterway.verb-intransitive. To have a boundless supply; be superabundant. See Synonyms at teem1.v. To flow over the top, brim, or banks of.v. To spread or cover over; flood.v. To cause to fill beyond capacity.n. The act of overflowing.n. Something that flows over; an excess.n. An outlet or vent through which excess liquid may escape.n. Computer Science A condition in which a calculation produces a unit of data too large to be stored in the location allotted to it.