16-letter words containing s, i, l, t, o
- wellington boots — a leather boot with the front part of the top extending above the knee.
- white sandalwood — the fragrant heartwood of any of certain Asian trees of the genus Santalum, used for ornamental carving and burned as incense.
- will-o'-the-wisp — ignis fatuus (def 1).
- windfall profits — Windfall profits are excessive profits with a non-business cause such as a natural disaster.
- world exposition — world's fair.
- world federalist — a promoter or supporter of world federalism.
- yah-boo politics — adversarial politics in which politicians constantly deride their opponents and dismiss everything suggested by them
- zenith telescope — a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.