1. to go back up, to come back up, to climb again, to reclimb

2. to rise again, to go up again (of temperature, water level etc)

3. to go up, to ride up (of clothing)

4. to go back, to return

5. to go back, to date back, to hearken back (à to)

6. to take back up, to bring back up, to put back up

7. to get back in, to get back on, to get back onboard

8. to turn back up

9. to wind up (of a clock)