gound, rheum, eye mucus

tear-filled eyes; eyes brimming with tears

(idiomatic) to do without being seen (by); to do behind (someone's) back; to do without the knowledge of (e.g. one's parents)

(idiomatic) to keep an eye on

(idiomatic) indifferent; paying no attention; taking no notice

(idiomatic) to look over, to scan

catch one's eye, attract one's attention

cheating or deceiving to favor oneself at gambling or some other activity, such as by making sure the dice roll a certain way, or by rigging a deal of cards / such a cheat or deception

(gambling, idiomatic) doubles: two of the same number other than 1, after rolling two dice / (gambling, idiomatic) in a forecast bet, betting that the same horse wins twice in a row

have an eye on