(1):

(n.) A short, upright piece of timber in framing; a short post; an intermediate stud.

(2):

(n.) A cask containing, sometimes 84, sometimes 120, gallons.

(3):

(n.) A figured stamp, die, or punch, used by goldsmiths, cutlers, etc.

(4):

(n.) A split log or heavy slab with the face smoothed; as, a floor made of puncheons.