1. To learn by repetition; SYN. exercise, practice, practise.
2. To teach by repetition.
3. To train in the military, e.g., in the use of weapons.
4. To undergo military training or do military exercises.
5. To perforate, as with a drill.

1. To stay behind; SYN. remain, stay.
2. To be insistent in the repetition or pressing of an utterance (as a question or an opinion)
3. To continue to exist especially past a usual, expected, or normal time