1. To give a small sharp bite to
2. To sever or remove by pinching of snipping; SYN. nip off, clip, snip, snip off.

1. Compress, squeeze
2. To be miserly or closefisted
3. To press painfully
4. Narrow, taper
5. To squeeze tightly between the fingers; SYN. vellicate, squeeze, twinge, tweet, nip, twitch.
6. To sail too close to the wind

ETYM Old Eng. twikken, originally the same word as twicchen; cf. lg. twikken. Related to Twitch.
1. To pinch and pull with a sudden jerk and twist; to twitch.
2. To adjust every so slightly in order to improve or perfect.