v. & n.
v. 1 intr. (foll. by at + verbal noun, or to + infin.) intend or try (aim at winning; aim to win). 2 tr. (usu. foll. by at) direct or point (a weapon, remark, etc.). 3 intr. take aim. 4 intr. (foll. by at, for) seek to attain or achieve.
n. 1 a purpose, a design, an object aimed at. 2 the directing of a weapon, missile, etc., at an object. take aim direct a weapon etc. at an object.
[ ME f. OF ult. f. L aestimare reckon ]