St. noun3 •a short written form of "Street", used in the name of a particular street •Abbreviation of Saint (always capitalized).After years of debate, hundreds of United Methodists from all over the world gathered in St. Louis last week to settle the denomination’s stance on LGBT clergy and same-sex weddings. — 2019 •(US) Abbreviation of state (pertaining to US states) formsSts · Sts. · sts · sts.