Synonyms: crack, crevice, scissure, cleft, fissure
Definition: a long narrow opening
Definition: an open or empty space in or between things
Usage: there was a small opening between the trees; the explosion made a gap in the wall
Synonyms: cleft
Definition: a split or indentation in something (as the palate or chin)
Similar words: indentation, indenture
Definition: a concave cut into a surface or edge (as in a coastline)
Definition: having one or more incisions reaching nearly to the midrib
Similar words: compound
Definition: composed of more than one part
Usage: compound leaves are composed of several lobes; compound flower heads