overflowv. t.[AS. oferflwan. See Over, and Flow.]1. To flow over; to cover woth, or as with, water or other fluid; to spread over; to inundate; to overwhelm.()The northern nations overflowed all Christendom. (Spenser.)2. To flow over the brim of; to fill more than full.()v. i.1. To run over the bounds.()2. To be superabundant; to abound.(Rogers.)n.1. A flowing over, as of water or other fluid; an inundation.(Bacon.)2. That which flows over; a superfluous portion; a superabundance.(Shak.)3. An outlet for the escape of surplus liquid.()Overflow meeting, a meeting constituted of the surplus or overflow of another audience.()