• The part of a bridle, usually of iron, which is inserted in the mouth of a horse, and having appendages to which the reins are fastened. • Fig.: Anything which curbs or restrains. • To put a bridle upon; to put the bit in the mouth of. • imp. & p. p. of Bite. • A part of anything, such as may be bitten off or taken into the mouth; a morsel; a bite. Hence: A small piece of anything; a little; a mite. • Somewhat; something, but not very great. • A tool for boring, of various forms and sizes, usually turned by means of a brace or bitstock. See Bitstock. • The part of a key which enters the lock and acts upon the bolt and tumblers. • The cutting iron of a plane. • In the Southern and Southwestern States, a small silver coin (as the real) formerly current; commonly, one worth about 12 1/2 cents; also, the sum of 12 1/2 cents. • 3d sing. pr. of Bid, for biddeth. • of Bite • of Bite