First most commonly refers to: First or 1st may also refer to: Search for First or 1st on Wikipedia. La 1ère (disambiguation) (French: La Première, lit. 'The First') This disambiguation page lists articles associated with the title First. 1st United is a local credit union committed to improving the finance health of the communities we serve across the East Bay and Tri-Valley areas. First time user? Enroll now. Shop antique furniture, fine jewelry, vintage fashion and art from top sellers around the world. Global shipping available. Here is the short answer, in case you are in a rush: '1st' is the correct numeric abbreviation of the ordinal first. '1th' is a grammatical error, and it should never be used. The brief overview will help you if you need to quickly decide which spelling to use, but there is more to learn. 1/ST TECHNOLOGY is racing's largest racing and gaming technology company offering world-class products via its AmTote, Xpressbet, 1/ST BET, XB SELECT, XB NET, PariMAX and Betmix brands. Abbreviation of first. Assyrian Neo-Aramaic: ܐ. Danish: 1. Finnish: 1. Norwegian: 1. Alternative form of 1st. Learn how to use ordinal numbers in English with clear grammar rules, common usage, and examples. Includes a full list from 1st to 100th. Ordinal numbers may be written in English with numerals and letter suffixes: 1st, 2nd or 2d, 3rd or 3d, 4th, 11th, 21st, 101st, 477th, etc., with the suffix acting as an ordinal indicator.