Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
wing-nut is a noun meaning "any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia". It carries 2 recorded senses.
any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia
a threaded nut with winglike projections for thumb and forefinger leverage in turning
Definitions, synonyms and semantic relations for wing-nut come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.