楔 - wedge, arrowhead

wedge; chock; linchpin; lynchpin

cuneiform (writing)

to drive a wedge into (e.g. enemy defences); to wedge apart

wedge; lynchpin; cotter

wedge-shaped; cuneate; cuneiform

slender sunfish (Ranzania laevis); oblong sunfish

wedge (for securing objects together)

cuneiform (bones)

split wedge

ice wedge

cuneiform (writing)

to make sure (of); to drive in a wedge