15-letter words containing i, r, o, n, h, a
- trithionic acid — a thionic acid, H2S3O6
- trout fisherman — a fisherman who catches trout
- unauthoritative — having due authority; having the sanction or weight of authority: an authoritative opinion.
- unchronological — arranged in the order of time: a chronological list of events.
- uncopyrightable — not able to be copyrighted
- unseaworthiness — constructed, outfitted, manned, and in all respects fitted for a voyage at sea.
- venus hairstone — a variety of rutilated quartz, used as a gemstone.
- vice chancellor — a substitute, deputy, or subordinate chancellor.
- vice-chancellor — a substitute, deputy, or subordinate chancellor.
- vine phylloxera — a homopterous insect, Phylloxera vitifolia, typically feeding on vine juices
- w.h. richardson — Henry Handel (Henrietta Richardson Robertson) 1870–1946, Australian novelist.
- weather station — an installation equipped and used for meteorological observation.
- weatherboarding — an early type of board used as a siding for a building.
- weatherproofing — Present participle of weatherproof.
- wheelchairbound — Confined to a wheelchair.
- white cast iron — cast iron having most or all of its carbon in the form of cementite and exhibiting a silvery fracture.
- white snakeroot — a North American plant, Eupatorium urticaefolium, the roots or rhizomes of which have been used as a remedy for snakebite
- winter holidays — a period of rest from work or studies taken in winter
- with one accord — If a number of people do something with one accord, they do it together or at the same time, because they agree about what should be done.
- worcester china — porcelain articles made in Worcester (England) from 1751 in a factory that became, in 1862, the Royal Worcester Porcelain Company
- working holiday — trip combining vacation with job experience