1 (I, T) to bite food several times before swallowing it: This meat's so tough I can hardly chew it!(+ at/on): a dog chewing on a bone2 (intransitive + transitive) to bite something repeatedly in order to taste it or because you are nervous: We gave the dog an old shoe to chew on. | Stop chewing your nails - it's disgusting.3 chew the cuda) if a cow or sheep chews the cud, it repeatedly bites food it has brought up from its stomach.b) informal to think very carefully before making a decision4 chew the fat informal to have a long, friendly conversation-see also: bite off more than you can chew bite 1 (10) chew on sth phrasal verb (T) chew on it informal to think about something carefully for a period of time chew sb out phrasal verb (T) AmE, informal to talk angrily to someone in order to show them that you disapprove of what they have done: I know I'm late, you don't have to chew me out! chew sth over phrasal verb (T) to think carefully about a question, problem, idea etc. over a period of time: Let me chew it over for a few days, and then I'll let you have my answer. chew sth up phrasal verb (T) to bite something repeatedly with your teeth so that you can make it smaller or softer and swallow it: That dog's chewed the carpet up again! 2 noun (C)1 the act of biting something repeatedly with the teeth2 something such as a sweet you chew or special tobacco which you chew but do not swallow: a chew of tobacco
Longman dictionary of contemporary English. 2004.