Gym Slang Decoded: PRs, AMRAPs and Everything Between

The short answer: gym slang is mostly shorthand for three things - how much weight, how many reps, and how hard it felt. Once you know that PR means personal record, AMRAP means as many reps/rounds as possible, and RPE means rate of perceived exertion, most whiteboard scribbles and program notation stop looking like code. Below is a working glossary you can bookmark and a few common mix-ups that trip up new lifters.

Why gym terminology exists in the first place

Coaches write programs fast, often on a whiteboard with 30 seconds before the next class starts. Abbreviations let a trainer fit "5 sets of 5 reps at 80% of your one-rep max, resting 3 minutes between sets" into "5x5 @80% 1RM, 3min rest." It's not gatekeeping, it's just density. Once you know the pattern - reps, sets, load, rest, in that order - you can decode almost any program without a dictionary.

Load and effort terms

1RM (one-rep max) is the heaviest weight you can lift for a single clean rep. Programs often set weights as a percentage of 1RM, e.g. 70% for volume work, 90%+ for peaking work close to a meet or test day.

PR (personal record) is your best-ever result on a lift or a workout - heaviest weight, fastest time, or most reps. A PR can be a lifetime PR or a PR for a specific rep range, like a 5-rep PR on squat.

RPE (rate of perceived exertion) is a 1-10 scale for how hard a set felt, where 10 means you couldn't have done another rep. An RPE 8 set leaves about 2 reps in the tank. It's covered in more depth in our guide to RPE explained.

RIR (reps in reserve) is the flip side of RPE - it counts how many reps you had left rather than a felt-difficulty score. RPE 8 and RIR 2 describe the same set.

DOMS (delayed onset muscle soreness) is the stiffness that shows up 24-48 hours after a hard or unfamiliar session. It's normal and not a sign you need to train harder; more on managing it in our piece on training through muscle soreness.

Workout format terms

AMRAP (as many reps/rounds as possible) means you work for a fixed time and count your total output, or you do a fixed number of rounds and note your finishing time - context tells you which.

EMOM (every minute on the minute) means you start a set task at the top of each minute and rest with whatever time is left. A common EMOM is 10 minutes of 8 kettlebell swings on the minute.

Superset is two exercises done back-to-back with no rest between them, then rest after both. Circuit extends that idea to 3+ exercises in a row.

Tabata is a specific interval format: 20 seconds of max effort, 10 seconds rest, repeated for 8 rounds (4 minutes total).

Deload is a planned week of reduced volume or intensity - usually 40-60% of normal working weight - to let joints and nervous system recover before the next training block.

Glossary table

Term	Meaning	Example use
1RM	One-rep max	"Work up to a heavy single, that's your 1RM"
PR	Personal record	"New PR on deadlift, 315 lbs"
RPE	Rate of perceived exertion (1-10)	"Last set was an RPE 9"
RIR	Reps in reserve	"Stop at 2 RIR"
AMRAP	As many reps/rounds as possible	"12-minute AMRAP of burpees and squats"
EMOM	Every minute on the minute	"10-minute EMOM, 5 pull-ups"
DOMS	Delayed onset muscle soreness	"Legs are wrecked with DOMS today"
Deload	Planned lower-intensity week	"Week 5 is a deload, drop to 60%"
Superset	Two exercises back-to-back	"Superset curls with triceps pushdowns"

Common mistakes new lifters make with these terms

The biggest one: treating every AMRAP or every RPE 9 set as a max-effort test. Programs use these formats deliberately, and going all-out on a set meant to be RPE 7 usually wrecks the next few days of training. Another common error is chasing a 1-rep PR every session instead of building volume first - most lifters make faster progress from consistent 3-5 rep work over 8-12 weeks than from testing maxes weekly. Finally, people confuse a deload with a rest week; a deload still has you in the gym, just lighter, which keeps movement patterns and blood flow going without the wear cost. A simple training tee like the Performance Short Sleeve T-Shirt (87% polyester, 13% spandex, 200 g/m²) from our training collection handles both max-effort days and light deload sessions without needing a wardrobe change.

How to use this glossary when reading a program

Read left to right: exercise, sets x reps, load or RPE, rest. "Back squat 4x6 @ RPE 7, 2min rest" means four sets of six reps, stopping with about three reps left in the tank, resting two minutes between sets. If you see a percentage instead of RPE, it's tied to a known 1RM - if you don't have a recent 1RM, ask your coach or estimate conservatively rather than guessing high. For a full breakdown of program notation, see how to read a workout program.

FAQ

What does AMRAP mean in a workout?

AMRAP stands for as many reps or rounds as possible, done within a set time limit or as a final set after fixed working sets. It's a way to measure output rather than just completing a prescribed number.

Is RPE the same as RIR?

They measure the same thing from different directions - RPE rates how hard a set felt on a 1-10 scale, RIR counts how many reps were left. RPE 8 and RIR 2 mean the same effort level.

How do I know if I should push for a PR today?

Push for a PR only when the program calls for it, sleep and nutrition have been consistent, and warm-up sets feel fast and controlled. Chasing PRs on a random day without those conditions increases injury risk for little benefit.

What is a deload week and do I need one?

A deload is a planned week at 40-60% of normal training load to let your joints and nervous system recover. Most lifters benefit from one every 4-8 weeks, especially after a block of heavy or high-volume training.