- 1 [intransitive, transitive] to be so full that the contents go over the sides The bathtub is overflowing. overflow with something Plates overflowed with party food. (figurative) Her heart overflowed with love. overflow something The river overflowed its banks.
- 2[intransitive] overflow (with something) (of a place) to have too many people in it The streets were overflowing with the crowds. The hospitals are filled to overflowing (= with patients).
- 3[intransitive, transitive] overflow (into something) overflow (something) to spread beyond the limits of a place or container that is too full The meeting overflowed into the street.
NAmE//ˌoʊvərˈfloʊ//Verb Forms present simple I / you / we / they overflow
he / she / it overflows
past simple overflowed
-ing form overflowing