chew

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To bite and grind with the teeth; masticate.
2. v. To meditate on; ponder: chew a problem over.
3. v. To make a crushing and grinding motion with the teeth.
4. v. To cogitate; meditate: chewed on the difficulties ahead.
5. v. Informal To use chewing tobacco.
6. n. The act of chewing.
7. n. Something held in the mouth and chewed, especially a plug of tobacco. See Regional Note at chaw.
8. chew out Slang To reprimand; scold.
9. idiom. chew the cud Slang To ponder over; meditate.
10. idiom. fat Slang To talk together in a friendly, leisurely way; chat at length.

Century Dictionary and Cyclopedia

1. To bite and grind with the teeth; masticate, as food, preparatory to swallowing and digestion.
2. Figuratively, to ruminate on in the thoughts; meditate on.
3. Synonyms Bite, Gnaw, etc. See eat.
4. To perform the act of biting and grinding with the teeth; champ; ruminate. Specifically
5. To press or grind tobacco between the teeth for the sake of its flavor or stimulating effects.
6. Figuratively, to meditate; reflect.
7. n. That which is chewed; that which is held in the mouth at one time; especially, a quid of tobacco.

Wiktionary

1. n. A small sweet, such as a taffy, that is eaten by chewing.
2. n. informal, uncountable Chewing tobacco.
3. n. countable or uncountable A plug or wad of chewing tobacco; chaw or a chaw.
4. v. To crush with the teeth by repeated closing and opening of the jaws; done to food to soften it and break it down by the action of saliva before it is swallowed.
5. v. To grind, tear, or otherwise degrade or demolish something with teeth or as with teeth.
6. v. informal To think about something; to ponder; to chew over.

GNU Webster's 1913

1. v. To bite and grind with the teeth; to masticate.
2. v. To ruminate mentally; to meditate on.
3. v. To perform the action of biting and grinding with the teeth; to ruminate; to meditate.
4. n. Law That which is chewed; that which is held in the mouth at once; a cud.

WordNet 3.0

1. n. a wad of something chewable as tobacco
2. v. chew (food); to bite and grind with the teeth
3. n. biting and grinding food in your mouth so it becomes soft enough to swallow