Definition of "abut"

abut¹

/əˈbʌt/

verb
third-person singular simple present abuts, present participle abutting, simple past and past participle abutted
1. (intransitive) 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)
2. (transitive) To border upon; be next to; abut on; be adjacent to.

abut²

/əˈbʌt/

verb
third-person singular simple present abuts, present participle abutting, simple past and past participle abutted
1. (intransitive) To lean against on one end; to end on, of a part of a building or wall.