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 tapering roof or analogous pyramidal construction surmounting a tower; steeple
4. The elongated, tapering tower atop a church or cathedral.
5. The inner or upper part of a spiral gastropod shell consisting of all the whorls except the whorl in contact with the body

1. To rise like a spire
2. To rise in or as if in a spiral