ETYM Cf. as. woeccan, wacian. Related to Watch, Wake.
1. To see or view; SYN. view, see, catch, take in.
2. To observe with attention; SYN. look on.
3. To look attentively.
4. To follow with the eyes or the mind; SYN. observe, follow, watch over, keep an eye on.
5. To be vigilant, be on the lookout, be on one's guard, be careful; SYN. look out, watch out.