pseudo-cleft sentence - definition and synonyms

noun [countable] linguistics 

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/ˌsjuːdəʊkleft ˈsentəns/
singularpseudo-cleft sentence
pluralpseudo-cleft sentences
  1. a way of emphasizing part of a sentence by using a ‘what’ clause as its subject or complement, with a form of ‘be’ as the main verb. The sentences ‘What we should do is tell the truth’, and ‘A holiday in the mountains is what I really need’ are pseudo-cleft sentences. The non-emphatic alternatives would be ‘We should tell the truth’ and ‘I really need a holiday in the mountains’.