n.
Pronunciation: ' sp ī (- ə )r
Function: noun
Etymology: Middle English, from Old English sp ī r; akin to Middle Dutch spier blade of grass
Date: before 12th century
1 : a slender tapering blade or stalk (as of grass)
2 : the upper tapering part of something (as a tree or antler) : PINNACLE
3 a : a tapering roof or analogous pyramidal construction surmounting a tower b : STEEPLE <a church spire >
S spire 3a