| STO | kill by throwing stones at |
|---|---|
| STO | of any of various dull tannish-gray colors |
| STO | of or relating to or made of stone |
| STO | United States architect (1902-1978) |
| STO | United States jurist who served on the United States Supreme Court as Chief Justice (1872-1946) |
| STO | United States journalist who advocated liberal causes (1907-1989) |
| STO | United States feminist and suffragist (1818-1893) |
| STO | United States filmmaker (born in 1946) |
| STO | (archeology) the earliest known period of human culture, characterized by the use of stone implements |
| STO | brown fish of the Atlantic and Mediterranean found around rocks and shipwrecks |
| STO | European trailing bramble with red berrylike fruits |
| STO | (British) someone who breaks up stone |