The Crochet Wiki

Crochet abbreviations are used in crochet patterns as a form of shorthand to make the patterns easier to read and shorter. However, the abbreviations can be quite confusing to beginners and more experienced readers alike, if the abbreviation is new or slightly altered. The following list of crochet abbreviations is the set described as common by the Craft Yarn Council of America. For a more complete list, see here.