(military, historical) A signal sounded to instruct soldiers that it is time to water their horses.

(horticulture) Of a pot or planter: designed with a reservoir from which the soil can take up water without the need for manual watering of the plant.

(computing) A computer attack strategy, in which the victim is a particular group (organization, industry, or region), and the attacker guesses or observes which websites the group often uses and infects one or more of them with malware.

plural of watering hole attack

Water in a gaseous state, especially when diffused in the atmosphere. / Steam.

(idiomatic) To withstand scrutiny or criticism; to be valid.

A large ungulate, widely used as a domestic animal in Asia, South America. North Africa and Europe: Bubalus bubalis. / (US, colloquial) A water tank mounted on a trailer to be towed by a motor vehicle.

(euphemistic) To urinate. / (nautical) To admit water; to leak.

(chemistry) Water in its standard form of H₂O, containing two protium hydrogen atoms, as opposed to heavy water.

(chemistry) Water containing deuterium instead of normal hydrogen (protium) (symbol D₂O); used as a moderator in nuclear reactors.