pinnacle
C1Substantiv/US /pˈɪnəkəl/ PĬN-ək-əl; UK /pˈɪnəkəl/ PĬN-ək-əl/
An architectural member, upright, and generally ending in a small spire, -- used to finish a buttress, to constitute a part in a proportion, as where pinnacles flank a gable or spire, and the like.
