THESAURUS
X-ray eye, cover, custodianship, custody, defense, eagle eye, eye, gimlet eye, guard, guardedness, guardianship, invigilation, keen eye, lee, lookout, monitoring, observance, peeled eye, penetrating eye, preservation, proctoring, protection, protective custody, prudence, qui vive, refuge, safekeeping, safety, shade, shadow, sharp eye, shelter, stewardship, surveillance, vigil, vigilance, wariness, watch, watch and ward, watchfulness, watching, weather eye
