As a Noun: 1. The act of doing something again and again. English = repetition. 2. The act of reading or studying something again in order to remember it better or learn it more thoroughly. English = revision. As a Verb or Adjective: 1. To do an action again. English = repeat. 2. To read or do things again in order to learn them thoroughly. English = revise, review. 3. Of an event or situation, to happen again and again, especially in the same way so as to be boring and uninteresting. English = (be) repetitive. As Modifier: 1. Used immediately next to a verb to mean the action happens several times, usually without much or any change. English = again and again, repetitively, over and over. 2. Used immediately next to a verb to mean the action happens many times and most of the time. English = frequently.