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SIS
Sis (noun) — a female person who has the same parents as another person. 2. (noun) a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors.
“my sister married a musician”
Sis is a valid 3-letter word worth 3 points in Scrabble (and Words With Friends letter values vary). Below are its anagrams and the shorter words hidden inside it.
Anagrams of SIS
No anagrams — the letters ISS only spell this word.