9-letter words containing s, p, i, n
- usucapion — the acquisition of property through long, undisturbed possession.
- vanaspati — a hydrogenated vegetable fat commonly used in India as a substitute for butter
- vaporings — instances of boasting
- vespasian — (Titus Flavius Sabinus Vespasianus) a.d. 9–79, Roman emperor 70–79.
- vulpinism — the characteristics of a fox
- waypoints — Plural form of waypoint.
- weepiness — Quality of being weepy.
- wheelspin — the spinning of a wheel, especially that of a drive wheel of a powered vehicle that has poor traction.
- whippings — Plural form of whipping.
- whipsnake — any of several long, slender New World snakes of the genus Masticophis, the tail of which resembles a whip.
- wimpiness — of, relating to, or characteristic of a wimp.
- wind ship — a large sailing vessel.
- windpipes — Plural form of windpipe.
- windspeed — Alternative spelling of wind speed.
- windswept — open or exposed to the wind: a wind-swept beach.
- winepress — a machine in which the juice from grapes is pressed for wine.
- wingspans — Plural form of wingspan.
- wispiness — The state of being wispy.
- wrappings — Plural form of wrapping.
- wrest pin — peg (def 5).
- wrist pin — a pin joining the end of a connecting rod to a trunk piston or the end of a piston rod.
- ypsilanti — Alexander, 1792–1828, Greek patriot and revolutionary leader.
- zippiness — The quality of being zippy.