16-letter words containing o, p, t, e
- well-upholstered — (of a person) fat
- white propaganda — propaganda that comes from the source it claims to come from
- will-o'-the-wisp — ignis fatuus (def 1).
- wimp environment — WIMP
- wipe off the map — to put out of existence
- wolfenden report — a study produced in 1957 by the Committee on Homosexual Offences and Prostitution in Britain, which recommended that homosexual relations between consenting adults be legalized
- world exposition — world's fair.
- writ of subpoena — a legal document commanding the attendance in court, as a witness, of the person on whom it is served, under a penalty
- xenotransplanted — Transplanted by xenotransplantation.
- zenith telescope — a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.
- zero-zero option — (in international nuclear arms negotiations) an offer to remove all intermediate-range nuclear missiles, if the other side will do the same