transitive. To add water to (a liquid) as a diluent, in order to increase the quantity or reduce the strength; esp. to dilute or adulterate…

To mix (liquors), mix with water, dilute. Obsolete.

figurative and in extended use. transitive. To diminish, disempower, or weaken (a person or thing); to deprive (a person or thing) of something…

transitive. To dilute or adulterate with water; = sense 9a. Cf. watered-down, adj. 2.

transitive. To coat (used tea leaves) with a colouring substance to enable reuse. Cf. face, v. 9. Obsolete. rare.

To dilute or adulterate. Chiefly U.S.