Definition of nonce word in English:

nonce word

noun

  • A word coined for one single occasion only.

    • ‘Nonce-words in ing are formed freely on words or phrases of many kinds, e.g. oh-ing, hear-hearing, hoo-hooing, pshawing, yo-hoing.’
    • ‘One researcher thinks that didgeridoo may be an Irish coinage, a nonce word like boogaloo or dingaling.’
    • ‘Another sort of punning found in newspapers is the allusive re-using of nonce words from slogans.’
    • ‘Here's a list of nonce words in my colourful vocabulary that have not yet found their way into any dictionary.’
    • ‘The word 'truth' is morphed into the nonce-word 'tlooth' in the title of Mathews's second novel.’
    new word, new expression, new term, new phrase, coinage, newly coined word, made-up word, invented word, invention, nonce word
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Origin

Late 19th century: from then anes ‘the one (purpose’) (see nonce) + word.