noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
UK:/hʌmˈdɪŋ.ə(ɹ)/
US:/hʌmˈdɪŋ.ɚ/
US:Recorded audio is listed in the source snapshot.
rhymes with -ɪŋə(ɹ)
CMU ARPABET:HH AH1 M D IH0 NG ER0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Something that is particularly outstanding, unusual, or exceptional.
Definition source: English Wiktionary via Wiktextract
Usage: informal
Examples
Most of the questions were pretty easy, but that last one was a humdinger.
US origin, perhaps a blend of hummer (“something that moves fast”) + dinger (“something outstanding”). First attested in a newspaper article in the Daily Enterprise of June 4, 1883, at Livingston, Montana.