aptitude

Từ điển American Heritage Dictionary 4th

ap·ti·tude (ăpʹtĭ-to͞od', -tyo͞od')n.
1. An inherent ability, as for learning; a talent. See Synonyms at ability.
2. Quickness in learning and understanding; intelligence.
3. The condition or quality of being suitable; appropriateness. [Middle English, tendency, from Late Latin aptitūdō, aptitude, from Latin aptus, apt. See apt.] ap'ti·tuʹdi·nal (-to͞odʹn-əl, -tyo͞odʹ-) adj.ap'ti·tuʹdi·nal·ly adv.