As a Noun: 1. A thing which is very good indeed-more so than all the other things of its type you can compare it to. English = the best. As a Verb or Adjective: 1. To be very good indeed-more so than all the other things of its type you can compare it to. English = (be) best. As Modifier: 1. Used before or after a verb (action) sign to mean that the action is done by someone or something in a very good way indeed-more so than all others you can compare it with. English = best.