16-letter words containing h, e, a, t, s, o
- two-tailed pasha — a distinctive vanessid butterfly of S Europe, Charaxes jasius, having mottled brown wings with a yellow-orange margin and frilled hind edges
- twofold purchase — a purchase using a double standing block and a double running block so as to give a mechanical advantage of four or five, neglecting friction, depending on whether the hauling is on the standing block or the running block.
- upper atmosphere — the portion of the atmosphere above the troposphere.
- walrus moustache — a long thick moustache drooping at the ends
- washington state — the state of Washington, especially as distinguished from Washington, D.C.
- watch one's step — a movement made by lifting the foot and setting it down again in a new position, accompanied by a shifting of the weight of the body in the direction of the new position, as in walking, running, or dancing.
- watson-wentworth — Charles, 2nd Marquis of Rockingham [rok-ing-uh m] /ˈrɒk ɪŋ əm/ (Show IPA), 1730–82, British statesman: prime minister 1765–66, 1782.
- way of the cross — stations of the cross.
- weather advisory — advisory (def 5).
- weather forecast — meteorological prediction
- what's the odds? — what difference does it make?
- whatever sb does — You say whatever you do when giving advice or warning someone about something.
- white sandalwood — the fragrant heartwood of any of certain Asian trees of the genus Santalum, used for ornamental carving and burned as incense.
- white wood aster — a composite plant, Aster divaricatus, of North America, having flat-topped clusters of white ray flowers and growing in dry woods.
- whole-tone scale — a scale progressing entirely by whole tones, as C, D, E, F♯, G♯, A♯, C.
- wholeheartedness — fully or completely sincere, enthusiastic, energetic, etc.; hearty; earnest: a wholehearted attempt to comply.
- woody nightshade — bittersweet (def 3).
- worth one's salt — a crystalline compound, sodium chloride, NaCl, occurring as a mineral, a constituent of seawater, etc., and used for seasoning food, as a preservative, etc.