15-letter words containing h, i, s, l, o, r
- thalassographic — relating to thalassography
- the anglo-irish — the inhabitants of Ireland of English birth or descent
- the cordilleras — the complex of mountain ranges on the W side of the Americas, extending from Alaska to Cape Horn and including the Andes and the Rocky Mountains
- the lost tribes — the ten tribes deported from the N kingdom of Israel in 721 bc and believed never to have returned to Palestine
- thorndike's law — the principle that all learnt behaviour is regulated by rewards and punishments, proposed by Edward Lee Thorndike (1874–1949), US psychologist
- threshold price — the highest price a retailer is allowed to sell a particular good at
- thromboembolism — the blockage of a blood vessel by a thrombus carried through the bloodstream from its site of formation.
- training school — a school that provides training in some art, profession, or vocation.
- transhistorical — occurring throughout all human history
- troubleshooting — to act or be employed as a troubleshooter: She troubleshoots for a large industrial firm.
- two-thirds rule — a former rule in the Democratic Party, effective 1832–1936, requiring a vote of at least two thirds of its national convention delegates to nominate a presidential and vice-presidential candidate.
- tyrwhitt-wilson — Gerald Hugh, 14th Baron Berners [bur-nerz] /ˈbɜr nərz/ (Show IPA), 1883–1950, English composer, painter, and author.
- unpolished rice — a partly refined rice, hulled and deprived of its germ but retaining some bran.
- untrustworthily — in an untrustworthy manner; not trustworthily
- visible horizon — horizon (def 1).
- where one lives — in one's sensitive or defenceless position
- white corpuscle — white blood cell.
- wilson's thrush — veery.
- winter holidays — a period of rest from work or studies taken in winter
- yorkshire dales — the valleys of the rivers flowing from the Pennines in W Yorkshire: chiefly Ribblesdale, Swaledale, Nidderdale, Wharfedale, and Wensleydale; tourist area