1. [n]  an activity that you like or at which you are superior; "chemistry is not my cup of tea"; "his bag now is learning to play golf"; "marriage was scarcely his dish"
2. [n]  mammary gland of bovids (cows and sheep and goats)
3. [n]  a flexible container with a single opening; "he stuffed his laundry into a large bag"
4. [n]  a portable rectangular traveling bag for carrying clothes; "he carried his small bag onto the plane with him"
5. [n]  a bag used for carrying money and small personal items or accessories (especially by women); "she reached into her bag and found a comb"
6. [n]  place that runner must touch before scoring; "he scrambled to get back to the bag"
7. [n]  an ugly or ill-tempered woman; "he was romancing the old bag for her money"
8. [n]  the quantity of game taken in a particular period (usually by one person); "his bag included two deer"
9. [n]  the quantity that a bag will hold; "he ate a large bag of popcorn"
10. [v]  capture or kill, as in hunting; "bag a few pheasants"
11. [v]  put into a bag; "The supermarket clerk bagged the groceries"
12. [v]  take unlawfully
13. [v]  bulge out; form a bulge outward, or be so full as to appear to bulge
14. [v]  hang loosely, like an empty bag

BAG is a 3 letter word that starts with B.

1. \Bag\, n. [OE. bagge; cf. Icel. baggi, and also OF. bague,
   bundle, LL. baga.]
   1. A sack or pouch, used for holding anything; as, a bag of
      meal or of money.
   2. A sac, or dependent gland, in animal bodies, containing
      some fluid or other substance; as, the bag of poison in
      the mouth of some serpents; the bag of a cow.
   3. A sort of silken purse formerly tied about men's hair
      behind, by way of ornament. [Obs.]
   4. The quantity of game bagged.
   5. (Com.) A certain quantity of a commodity, such as it is
      customary to carry to market in a sack; as, a bag of
      pepper or hops; a bag of coffee.
   {Bag and baggage}, all that belongs to one.
   {To give one the bag}, to disappoint him. [Obs.] --Bunyan.
   

2. \Bag\, v. t. [imp. & p. p. {Bagged}(?); p. pr. & vb. n.
   {Bagging}]
   1. To put into a bag; as, to bag hops.
   2. To seize, capture, or entrap; as, to bag an army; to bag
      game.
   3. To furnish or load with a bag or with a well filled bag.
            A bee bagged with his honeyed venom.  --Dryden.
   

3. \Bag\, v. i.
   1. To swell or hang down like a full bag; as, the skin bags
      from containing morbid matter.
   2. To swell with arrogance. [Obs.] --Chaucer.
   3. To become pregnant. [Obs.] --Warner. (Alb. Eng. ).
   

(1.) A pocket of a cone-like shape in which Naaman bound two pieces of silver for Gehazi (2 Kings 5:23). The same Hebrew word occurs elsewhere only in Isa. 3:22, where it is rendered "crisping-pins," but denotes the reticules (or as R.V., "satchels") carried by Hebrew women.

(2.) Another word (kees) so rendered means a bag for carrying weights (Deut. 25:13; Prov. 16:11; Micah 6:11). It also denotes a purse (Prov. 1:14) and a cup (23:31).

(3.) Another word rendered "bag" in 1 Sam. 17:40 is rendered "sack" in Gen. 42:25; and in 1 Sam. 9:7; 21:5 "vessel," or wallet for carrying food.

(4.) The word rendered in the Authorized Version "bags," in which the priests bound up the money contributed for the restoration of the temple (2 Kings 12:10), is also rendered "bundle" (Gen. 42:35; 1 Sam. 25:29). It denotes bags used by travellers for carrying money during a journey (Prov. 7:20; Hag. 1:6).

(5.) The "bag" of Judas was a small box (John 12:6; 13:29).