English II - Vocabulary: 5. bi- and 6 semi- The following reviews prefixes from the Latin bi- (bis) meaning twice and semi- meaning half. **PLAY REPEATED TIMES IN ORDER TO REVIEW ALL WORDS!!** Tools See a list of terms used in these activities. Matching Flashcards (Java / non-Java) Activities created by: Ginny Lindzey This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.