Thumbsucking

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The act of sucking one's thumb. uncountable

    "Thumbsucking may be used by children to console themselves."

Example

More examples

"Thumbsucking may be used by children to console themselves."

Etymology

From thumb + sucking.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.