A tap or cock by which water may be drawn from any supply.(noun)
The Century Dictionary (Public Domain)
Use "water-tap" in a sentence
"At last I sprang out of bed to look for the water-tap."
"A concrete platform with a tank and water-tap in the reception area permits easy washing of transport tanks and churns; make sure that water can run off, and not remain as puddles."
"They shoot up: Wimpe eying the water-tap nervously, recalling Tchaikovsky, salmonella, a fast medley of whistlable tunes from the Path'tique."