12-letter words containing i, p, a, d
- unstipulated — to make an express demand or arrangement as a condition of agreement (often followed by for).
- up and doing — busy; active
- velocipedean — someone who rides a velocipede
- video piracy — the unauthorized or prohibited use of audio-visual works covered by copyright law, in a way that violates one of the copyright owner's exclusive rights, such as the right to reproduce the copyrighted work, or to make derivative works
- video player — VCR: videotape recorder
- videographer — a person who makes films with a video camera.
- walled plain — a circular or almost circular area on the moon, sometimes with a floor that is depressed, usually partially enclosed by walls that rise to varying heights and that are usually lower than those of a crater.
- warp-knitted — designating a fabric made by warp knitting.
- water spider — a Eurasian spider, Argyroneta aquatica, that spins a web in the form of an air-filled chamber in which it lives submerged in streams and ponds
- widow's peak — a point formed in the hairline in the middle of the forehead.
- wild apricot — apricot (def 4).
- wild parsley — any of several uncultivated plants resembling the parsley in shape and structure.
- wild parsnip — a strong-smelling umbelliferous plant, Pastinaca sativa, that has an inedible root: the ancestor of the cultivated parsnip
- wild spinach — any of various plants of the genus Chenopodium, sometimes used in place of spinach.
- woolly aphid — any plant louse of the family Aphididae, characterized by a waxy secretion that appears like a jumbled mass of fine, curly, white cottony or woolly threads, as Eriosoma lanigerum (woolly apple aphid or American blight) and Prociphilus tessellatus (woolly alder aphid)