Meaning of WEDGE in English
1》 a piece of wood, metal, etc. with a thick end that tapers to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
2》 a ~-shaped thing or piece.
↘a golf club with a low, angled face for maximum loft.
3》 a shoe with a fairly high heel forming a solid block with the sole.
4》 Brit. informal money or earnings.
1》 fix in position using a ~.
2》 force into a narrow space.
drive a ~ between cause a breach between.
the thin end of the ~ informal an action of little intrinsic importance that is likely to lead to more serious developments.
OE wecg (n.), of Gmc origin.
■ verb prepare (pottery clay) for use by cutting, kneading, and throwing down to homogenize it and remove air pockets.
C17: of unknown origin.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004