tumbler

noun14

1. •
   A drinking glass that has no stem, foot, or handle — so called because such glasses originally had a pointed or convex base and could not be set down without spilling. This compelled the drinker to finish their measure.

   • I poured out some whisky into a tumbler, and gave it to him. — 1886
2. •
   A beverage cup, typically made of stainless steel, that is broad at the top and narrow at the bottom commonly used in India.
3. •
   A movable obstruction in a lock, consisting of a lever, latch, wheel, slide, or the like, which must be adjusted to a particular position by a key or other means before the bolt can be thrown in locking or unlocking.
4. •
   A device for smoothing and polishing rough objects that are placed inside its rotating chamber.
5. •
   A variety of the domestic pigeon remarkable for its habit of tumbling, or turning somersaults, during its flight.
6. •
   A service that mixes potentially identifiable or 'tainted' cryptocurrency funds with others, so as to obscure the audit trail; used for money laundering.
7. •
   Something that causes something else to tumble.
8. •
   A piece attached to, or forming part of, the hammer of a gunlock, upon which the mainspring acts and in which are the notches for sear point to enter.
9. •
   The pupa of a mosquito.
10. •
    One of a set of levers from which the heddles hang in some looms.
11. •
    One who tumbles; one who plays tricks by various motions of the body.

    • […] the tricks of tumblers, funambuloes, baladines […] — 1605
12. •
    (no longer used) A dog of a breed that tumbles when pursuing game, formerly used in hunting rabbits.
13. •
    (dialect, no longer used) A kind of cart; a tumbril.
14. •
    (no longer used) A porpoise.