A - The first letter of the alphabet. A1, (informal) in perfect condition; first rate. From A to Z, from beginning to end.
a adj. (called the indefinite article) 1. One person or thing but not any specific one, I need a knife. Per, we pay $40 a year; twice a day.
Aaron's rod - Any of several tall flowering plants, especially mullein. In the Bible, Aaron's rod sprouted and blossomed as a sign that he was designated by God as high priest of the Hebrews.
Aback - adv. Taken aback, disconcerted.
Abacus - n. (pl. abacuses) a frame containing parallel rods with beads that slide up and down, used for counting.
Abaft - adv. In the stern half of a ship. - prep. Nearer to the stern than.
Abandon - v. 1. To go away from (a person or thing or place) without intending to return; abandon ship
