1
2
: a drinking glass without foot or stem and originally with pointed or convex base
3
a
: a movable obstruction in a lock (such as a lever, latch, wheel, slide, or pin) that must be adjusted to a particular position (as by a key) before the bolt can be thrown
b
: a piece on which the mainspring acts in a gun's lock
4
: a device or mechanism for tumbling (such as a revolving cage in which clothes are dried)
5
: a worker who operates a tumbler
Examples of tumbler in a Sentence
She drank a tumbler of water.
a gymnast who's a skillful tumbler
Recent Examples on the Web
In addition to its insulated design that maintains temperatures, the tumbler has a convenient handle, straw, and leak-proof lid.
—
Clara McMahon, People.com, 27 Mar. 2025
And this tumbler is one of our favorite travel mugs, offering the best bang for your buck (at five bucks less than usual).
—Louryn Strampe, WIRED, 22 Mar. 2025
The Cherry Blossom addition to Stanley’s supremely popular selection of pink tumblers is part of the brand’s larger spring drop.
—Stacia Datskovska, WWD, 6 Mar. 2025
An assortment of new drinkware will also be on shelves at Starbucks cafes including tumblers, cold cups, bottle bags, and water bottles.
—Claire Hoppe Norgaard, Better Homes & Gardens, 3 Mar. 2025
See All Example Sentences for tumbler
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Clara McMahon, People.com, 27 Mar. 2025
And this tumbler is one of our favorite travel mugs, offering the best bang for your buck (at five bucks less than usual).
—Louryn Strampe, WIRED, 22 Mar. 2025
The Cherry Blossom addition to Stanley’s supremely popular selection of pink tumblers is part of the brand’s larger spring drop.
—Stacia Datskovska, WWD, 6 Mar. 2025
An assortment of new drinkware will also be on shelves at Starbucks cafes including tumblers, cold cups, bottle bags, and water bottles.
—Claire Hoppe Norgaard, Better Homes & Gardens, 3 Mar. 2025
See All Example Sentences for tumbler
Cite this Entry
“Tumbler.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tumbler. Accessed 1 Apr. 2025.
Copy CitationKids Definition
tumbler
noun
tum·bler
ˈtəm-blər 
1
: a person (as an acrobat) who tumbles
2
: a pigeon that often tumbles backward in flight
3
: a drinking glass
a water tumbler
4
: a movable part in a lock that must be adjusted (as by a key) before the lock will open
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