peg

A small cylindrical or tapered pin, as of wood, used to fasten things or plug a hole.

A similar pin forming a projection that may be used as a support or boundary marker.

One of the pins of a stringed instrument that are turned to tighten or slacken the strings so as to regulate their pitch.

A degree or notch, as in estimation.

A drink of liquor.

A low and fast throw made to put a base runner out.

A leg, especially a wooden one.

To fasten or plug with a peg or pegs.

To designate or mark by means of a peg or pegs.