Merriam-Webster Collegiate Dictionary - aim

 I. verb  Etymology: Middle English, from Anglo-French aesmer & esmer; Anglo-French aesmer, from a- (from Latin ad-) + esmer to estimate, from Latin aestimare  Date: 14th century  intransitive verb  1. to direct a course; specifically to point a weapon at an object  2. aspire, intend ~s to reform the government  transitive verb  1. obsolete guess, conjecture  2.  a. point ~ a gun  b. to direct to or toward a specified object or goal a program ~ed at reducing pollution  II. noun  Date: 14th century  1. obsolete mark, target  2.  a. the pointing of a weapon at a mark take careful ~  b. the ability to hit a target a shooter with good ~  c. a weapon's accuracy or effectiveness the gun's ~ is off  3. obsolete  a. conjecture, guess  b. the directing of effort toward a goal  4. a clearly directed intent or purpose our ~ is to win  Synonyms: see intention  • ~less adjective  • ~lessly adverb  • ~lessness noun AIM  abbreviation American Indian Movement