Pattern Abbreviations Below is a list of crochet abbreviations used in patterns by designers and publishers. These definitions reflect standard US crochet terminology. The patterns in Modern Crochet will only use a portion of these abbreviations. Master list provided with permission from Craft Yarn Council. Visit craftyarncouncil.com for additional resources. alt alternate approx approximately beg begin/beginning bet between bl or blo back loop or back loop only bo bobble BP back post BPdc back post double crochet BPdtr back post double treble crochet BPhdc back post half double crochet BPsc back post single crochet BPtr back post treble crochet cc contrasting color ch chain stitch ch- refer to chain or space previously made, e.g., ch-1 space ch-sp chain space cl cluster cont continue dc double crochet dc2tog double crochet 2 stitches together(or any number of stitches) dec decrease dtr double treble crochet edc extended double crochet ehdc extended half double crochet esc extended single crochet etr extended treble crochet fl or flo front loop or front loop only foll following FP front post FPdc front post double crochet FPdtr front post double treble crochet FPhdc front post half double crochet FPsc front post single crochet FPtr front post treble crochet hdc half double crochet hdc2tog half double crochet 2 stitches together (or any number of stitches) inc increase join join two stitches together lp loop m marker mc main color pat or patt pattern pc popcorn stitch pm place marker prev previous ps or puff puff stitch rem remaining rep repeat rnd round rs right side sc single crochet sc2tog single crochet 2 stitches together(or any number of stitches) sh shell sk skip sl st slip stitch sp space st stitch tbl through back loop tch or t-ch turning chain tog together tr treble crochet tr2tog treble crochet 2 stitches together (or any number of stitches) trtr triple treble crochet turn turn your work ws wrong side yo yarn over yoh yarn over hook