Entry 2 senses Webster, 1913

Hawk-eyed

/(-īd`)/ · Hawk·-eyed · IPA

01 a. Having very keen vision; sharp-sighted; discerning.

1.
Having very keen vision; sharp-sighted; discerning.
2.
alert to possible danger.

Syn. keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted. — Syn. -- argus-eyed, open-eyed, unsleeping, vigilant, wary, watchful.