From Longman Dictionary of Contemporary Englishirregular verb/plural etcirregular verb/plural etcSLGa verb or a form of a word that does not follow the usual pattern of grammar, such as the verb ‘catch’ or the plural ‘fish’ OPP regular → irregular
Examples from the Corpus
irregular verb/plural etc• Index of language points and of irregular verbs.• The conjugations of these irregular verbs. 