4-letter words containing a, d, s
- sand — George [jawrj;; French zhawrzh] /dʒɔrdʒ;; French ʒɔrʒ/ (Show IPA), (Lucile Aurore Dupin Dudevant) 1804–76, French novelist.
- sard — a reddish-brown chalcedony, used as a gem.
- saud — (Saud ibn Abdul-Aziz), 1901?–69, king of Saudi Arabia 1953–64 (son of ibn-Saud and brother of Faisal).
- scad — any carangid fish of the genus Decapterus, inhabiting tropical and subtropical shore waters.
- shad — a deep-bodied herring, Alosa sapidissima, of Europe and North America, that migrates up streams to spawn, used for food.
- sida — any plant of the Queensland hemp genus Sida
- soda — Symbolic Optimum DEUCE Assembly Program
- spad — signal passed at danger: an incident in which a train goes through a red light
- swad — a loutish person
- usda — United States Department of Agriculture
- wads — Plural form of wad.