From Longman Dictionary of Contemporary Englishleap to somebody’s defenceleap to somebody’s defenceBritish English, leap to somebody’s defense American English to quickly defend someone When her younger brother was being bullied she leapt to his defence. → leap
Examples from the Corpus
leap to somebody’s defence• But the girlfriend of deputy manager John Onanuga leapt to his defence.• The stats cant leap to his defence either.• Did Geoffrey leap to the defence of every person with disabilities whom he encountered? 