peg

A cylindrical wooden or metal object used to fasten or as a bearing between objects.

Measurement between the pegs: after killing an animal hunters used the distance between a peg near the animal's nose and one near the end of its tail to measure its body length.

A protrusion used to hang things on.

"Hang your coat on the peg and come in."

To fasten using a peg.

"Let's peg the rug to the floor."

To affix or pin.

"I found a tack and pegged your picture to the bulletin board."

To fix a value or price.

"China's currency is no longer pegged to the American dollar."