I. ˌō-vər-ˈflō
Date: before 12th century
transitive verb
1. : to cover with or as if with water : inundate
2. : to flow over the brim of
3. : to cause to overflow
intransitive verb
1. : to flow over bounds
2. : to fill a space to capacity and spread beyond its limits
the crowd overflow ed into the street
II. ˈō-vər-ˌflō noun
Date: 1568
1. : a flowing over : inundation
2. : something that flows over : surplus
3. : an outlet or receptacle for surplus liquid