abut /əˈbʌt/verb 3forms 4phrases 1 verb3 •To touch by means of a mutual border, edge or end; to border on; to lie adjacent (to); to be contiguous (said of an area of land)It was a time when Germany still abutted upon Russia.His land abuts on the road. •To border upon; be next to; abut on; be adjacent to. •To lean against on one end; to end on, of a part of a building or wall. formsabutted · abutting · abuts · abutteth Phrases with abut abut onTo border on.