21-letter words containing h, e, r, s, i, o
- worth someone's while — worth someone's time, consideration, etc.; profitable in some way
- writ of habeas corpus — law: petition for hearing
- youth training scheme — (formerly, in Britain) a scheme, run by the Training Agency, to provide vocational training for unemployed 16–17-year-olds
- zero-emission vehicle — a vehicle, as an automobile, that does not directly produce atmospheric pollutants. Abbreviation: ZEV.