{{Wiktionary|sth|STh|stẖ|sth.}}

'''Sth''' is an abbreviation of ''something''. '''STH''' or '''sth''' may also refer to: * STH (gene), a human gene * ''S.T.H.'', or ''Straight To Hell'', a gay pornography zine * Saint Helena, IIGA country code * Saint Helena, Ascension and Tristan da Cunha, UNDP country code * Season ticket holder, someone who has purchased a season ticket * Secretary for Transport and Housing, of the Government of Hong Kong * Soil-transmitted helminth, a type of parasitic worm * Soil-transmitted helminthiasis, caused by soil-transmitted helminths * Somatotropin hormone, or growth hormone * ''Sonic the Hedgehog'' * Super Treasure Hunt, a designation used on the highly collectible Hot Wheels models

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