SC or DC?

I just realized that on every string bag I have crocheted, I have single crocheted the join-y bits of the main bag loops, not double crocheted them like the pattern says. Ah, that is because the printed out pattern I'm using says "sc." Ursula! What's going on?

ETA: I'm promoting Urs's answer so that when I archive this, it will be kept (comments are not archived). And also so that anyone will be able to see this interesting info immediately.

Urs says:

The original pattern was in Austrailan. They use British crochet terms, not US ones.

US Term = Australian Term
Slip stitch = Single crochet
Single crochet = Double crochet
Double crochet = Triple crochet

So my pattern, in US terms, says single crochet, because the Australian pattern said double crochet meaning the stitch we call single crochet. If you look at the first part of the pattern, they wrote to do "TC" stitches, I wrote "dc" stitches. Same deal.


Also from Ursula, promoted from comments:

Just so you know, the book Crocheting Teddy Bears by Barbara and Ruth Jacksier has a complete list of US to UK stitch names on page 8. I'll reproduce it here, adding the number of yarn overs for the longer stitches

US Term = UK Term = Number of Yarn Overs

Chain = Chain = N/A
Slip Stitch = Single Crochet = N/A
Single Crochet = Double Crochet = N/A
Half Double Crochet = Half Treble Crochet = 1
Double Crochet = Treble Crochet = 1
Treble/Triple Crochet = Double Treble Crochet = 2
Double-Treble Crochet = Treble-Treble Crochet = 3
Treble-Treble Crochet = Quadruple-Treble Crochet = 4

Afghan stitch = Tricot crochet