cosset(noun, verb) noun1. a pet; often specifically a pet lamb2. a cosseted person, an indulged person. verb1. treat with excessive indulgenceSimilar word(s): baby, cocker, coddle, featherbed, indulge, mollycoddle, pamper, spoilDefinition categories: social, handle, treatSentences with cosset as a verb:- It cossets the soul.- The foam cossets your skin.- The car cossets its occupants in comfort.