In our swim workouts, we use a few abbreviations to cut down on word count and make things simpler.
You'll also find PDF document links in the workouts themselves, showing how to do any technique drills that are in that workout.
This article will outline the abbreviations we use.
Z1 Training Zone 1
Z2 Training Zone 2
Z3 Training Zone 3
Z4 Training Zone 4
Z5 Training Zone 5
FC Frontcrawl or freestyle
KICK Kicking on front while holding a kick float at arms length
FISTS Freestyle with clenched fists
BI Bilateral breathing (every 3 strokes)
DRILL technique drill (details in PDF attached to workout)
BUILD Do each rep or lap faster than the previous
CHOICE Any stroke or swim drill
PULL ANKLES front crawl with pull buoy float between ankles