1 of 2


: an impression left by a thumb especially when used as a mark of identification
: a depression in the sides of a single comb of a fowl that is a defect in show birds


2 of 2

transitive verb

: to mark with the thumb
also : to take a thumbmark of (as for identification)

Word History



thumb entry 1 + mark

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Dictionary Entries Near thumbmark

Cite this Entry

“Thumbmark.” Dictionary, Merriam-Webster, Accessed 20 Jul. 2024.

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