7-letter words containing a, s, t, o, u
- sfumato — the subtle and minute gradation of tone and color used to blur or veil the contours of a form in painting.
- shantou — a seaport in E Guangdong province, in SE China.
- shavuot — a festival, celebrated on the sixth and seventh days of Sivan by Orthodox and Conservative Jews outside Israel but only on the sixth day by Reform Jews and Jews in Israel, that commemorates God's giving of the Ten Commandments to Moses.
- solutal — of or relating to a solute
- soutane — a cassock.
- squanto — died 1622, North American Indian of the Narragansett tribe: interpreter for the Pilgrims.
- subatom — any component of an atom.
- sudatio — (in an ancient Roman bath) a chamber, between the sudatorium and the calidarium, where sweat was removed.
- suharto — 1921–2008, Indonesian army officer and political leader: president 1967–98.
- surcoat — a garment worn over medieval armor, often embroidered with heraldic arms.
- u-boats — a German submarine.
- upcoast — along a coast in a northward direction
- washout — a washing out of earth, gravel, etc., by water, as from an embankment or a roadway by heavy rain or by a flash flood.