How do you spell Chew

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