wedge
noun
°One of the simple machines; a piece of material, such as metal or wood, thick at one edge and tapered to a thin edge at the other for insertion in a narrow crevice, used for splitting, tightening, securing, or levering ().
"Stick a wedge under the door, will you, it keeps blowing shut."
°A piece (of food etc.) having this shape.
"Can you cut me a wedge of cheese?"
verb
°To support or secure using a wedge.
°To force into a narrow gap.
synonyms: skein