Terms to know

The words you will meet in a program, in plain language.

Effort

RPE: Rating of perceived exertion. In powerlifting it rates a set by the reps you had left. RPE 10 means none, RPE 9 one, RPE 8 two.
RIR: Reps in reserve. The good reps you could still have done when you stopped the set. RPE 8 is 2 RIR.
AMRAP: As many reps as possible. You keep going until the next rep would fail or break form. Many programs end a lift with one AMRAP set.
Failure: The point where you cannot complete another rep. A set taken to failure is RPE 10 with no reps in reserve.

1RM: One-rep max. The heaviest weight you can lift for one good rep. Most programs set their weights from it.
Estimated 1RM: A one-rep max worked out from a set of several reps, so you never have to test it. The reps you had left count as reps done.
Rep max: The heaviest weight you can lift for a set number of reps. Your 5RM is the most you can lift for five.
Training max: A working number set below your true max, usually 85 to 90% of it. 5/3/1 bases its percentages on a training max.

Top set: The heaviest set of the day for a lift. Lighter back-off sets often follow it.
Back-off sets: Lighter sets done after the top set. They add practice and volume at a weight you can repeat with good form.
Competition lifts: Squat, bench press and deadlift, done the way a meet judges them. Depth on the squat, a pause on the bench, a full lockout on the deadlift.
Variation: A changed version of a competition lift, such as a paused squat, a close-grip bench or a deficit deadlift. Each one trains a specific part of the lift.
Accessories: Exercises that support the main lifts, such as rows, lunges or triceps work. They build muscle and fill gaps the main lifts leave.

Block: A run of weeks with one plan and one goal. Blocks in SBD Guru run 6 to 16 weeks.
Periodization: Planned changes in volume and intensity over time, so training keeps working and you peak when you need to.
Linear progression: Adding a small amount of weight every session or every week. The simplest way for a new lifter to get stronger.
Daily undulating (DUP): Daily undulating periodization. Reps and load change from day to day within the week, for example a heavy day, a medium day and a volume day.
Deload: A planned easier week. Fewer hard sets and lighter loads or lower RPE, then back to the plan.
Taper: Cutting volume in the last week or two before a meet while the weights stay heavy, so you arrive fresh.
Peak: The last phase before a meet or a test day, when weights are heaviest and reps are lowest.

Volume: How much work you do, counted in hard sets or total reps for a lift or a week.
Volume load: The total weight you lift, counting every rep of every set. Five sets of five at 100 kg comes to 2,500 kg. Useful for comparing weeks of the same lift.
Intensity: How heavy the weight is, usually written as a percentage of your 1RM. Effort is a separate thing, measured by RPE.
Percent of 1RM: A weight written as a share of your max, so one plan fits lifters of any strength. Enter a set in the 1RM calculator, and its chart shows the bar weight for each share.
Frequency: How many times a week you train a lift. Programs range from once a week to four or more.

Build a program from your maxes, log your sessions and ask the coach.