As a Noun: 1. The quality of being the best of its kind, of being perfect. English = perfection. 2. A physician highly trained in one particular area of medicine. English = specialist. As a Verb or Adjective: 1. To be as good as possible. English = (be) perfect. 2. To be as accurate as possible. English = (be) precise, (be) exact. Idiomatic English = (be) spot on. 3. To be more important or better than other things of its kind. English = (be) special, (be) exceptional, (be) outstanding. Interactive: 1. Used alone to mean you think that something is good in all possible ways. It could hardly be any better. English = 'Perfect!', 'That's ideal!' 2. Used alone to mean you think someone's answer to a question is exactly right and could hardly be any better. English = 'Exactly!', 'Spot on!', and so on. As Modifier: 1. Used in a phrase to indicate that what you are saying applies more to one thing or situation than to any other. English = especially.