Functional Movements Dictionary

AMRAP: As Many Rounds (or Reps) as Possible.
BS: Back squat.
BW (or B/W): Body weight.
CLN: Clean.
C&J: Clean and Jerk.
C2: Concept II rowing machine.
DL: Deadlift.
DNF: Did not finish.
EMOM: Every Minute on the Minute
ME (or Max Effort): To perform a movement or exercise with maximum effort or intensity.
FS: Front squat.
GHD: Glute Hamstring Developer.
GPP: General Physical Preparedness (Fitness Program).
HC: Hang Clean.
HPC: Hang Power Clean.
HSPU: Handstand push up.
HSC: Hang Squat Clean.
IF: Intermittent fasting.
KB: Kettlebell.
KBS: Kettlebell swing.
KTE (or K2E): Knees-to-elbows.
MetCon: Metabolic Conditioning — conditioning intended to increase the storage and delivery of energy for any activity or conditioning the muscles to better use the fuel delivered to them by improving the efficiency of the different metabolic pathways.
MU: Muscle-ups.
OHS: Overhead squat.
PC: Power Clean.
PD: Pood, A Russian weight measurement.
PR: Personal Record.
PP: Push Press.
PJ: Push Jerk.
PSn: Power Snatch.
PU: Pull ups (or Push ups).
Rep: Repetition.
Rx’d (or RX): As Prescribed; As Written. WOD done without any adjustments or substitutions.
1RM (or 2RM, 3RM etc.): Repetition Maximum. Your 1RM is your max lift for one rep.
SC: Squat Clean.
SDHP: Sumo Deadlift High-Pull.
Set: A number of repetitions.
SPP: Specific Physical Preparedness (Skill Training).
Sn: Snatch.
SQ: Squat.
Subbed: Substituted.
T2B (or TTB): Toes-to-bar.
WO (or W/O): Workout.

WOD: Workout of the Day.

Ladder: To perform one or more exercises with an ascending or descending rep range (usually with a set time domain).

Chipper: A workout/training session consisting of a series of exercises and their repetitions performed one time through as quickly as possible. There are no structured rest periods, you rest when you need to in order to avoid muscle failure and keep the rest periods brief.
Complex: A series of three or more exercises that focus on the same muscle group.

#: Symbol for Lbs. or Pounds.
1-1-1-1-1 (or 2-2-2/3-3-3 etc.): 1-1-1-1-1 = You should be arriving at a new 1RM (or 2RM/3RM etc.) or be at your current 1RM for any given lift within five (or otherwise stated) sets.

Other Terms:

Tabata Interval (or Tabata): A workout of 8 intervals alternating 20 seconds of max rep work with 10 seconds of rest. Total is 4 minutes per exercise. Score the lowest interval rep count unless otherwise stated.