Reference
US vs UK Crochet Terms
The single most common source of confusion in crochet: the same stitch name means a different stitch height depending on which side of the Atlantic the pattern was written on. Always check which convention a pattern uses before you start — this table converts between the two.
| US Term | UK Term |
|---|---|
| Slip stitch (sl st) | Slip stitch (sl st) |
| Single crochet (sc) | Double crochet (dc) |
| Half double crochet (hdc) | Half treble crochet (htr) |
| Double crochet (dc) | Treble crochet (tr) |
| Treble crochet (tr) | Double treble crochet (dtr) |
| Double treble crochet (dtr) | Triple treble crochet (trtr) |
| Skip (sk) | Miss (miss) |
| Gauge | Tension |
| Yarn over (yo) | Yarn over hook (yoh) |
Notice the pattern: every US stitch name is one step "shorter" than its UK equivalent for the same actual stitch height. A pattern that never defines its terms but uses "treble crochet" as the shortest stitch is almost certainly UK-written; if "double crochet" is the shortest stitch, it's almost certainly US-written. This library uses US terms throughout.