noun a cask containing, sometimes 84, sometimes 120, gallons.
2. puncheon ·noun a figured stamp, die, or punch, used by goldsmiths, cutlers, ·etc.
3. puncheon ·noun a short, upright piece of timber in framing; a short post; an intermediate stud.
4. puncheon ·noun a split log or heavy slab with the face smoothed; as, a floor made of puncheons.