Steal

The item can be Stolen or Mugged from the enemy. The item is a rare item if the monster's name is Italicized. Your character can always steal rare items if he is equipped with the Master Thief or Pickpocket armor attribute. The number next to the monster name is the quantity of items possible to steal from that monster.

Drop

The item can be dropped by the enemy. The item is a rare item if the monster's name is Italicized. Increase your chances of receiving rare items by upping your party's Luck attribute.

Bribe

Item, quantity, and amount with which you can Bribe from the enemy. See the Bribe FAQ for more details.