rpm's
Engine speed measure
RPM's is a plural or possessive form of RPM, the abbreviation for revolutions per minute—a measure of rotational speed.
Car enthusiasts talk about engine RPM's when discussing performance: The tachometer showed 6,000 rpm's.
The apostrophe is nonstandard but common; RPMs is preferred in formal writing.
Rotational speed indicator
- redlineEditorial revision marking
- idleWithout activity or purpose
- throttlePower flow controller
- horsepowerRate of mechanical work
torque · crankshaft · rev · powerband · displacement · camshaft · valves · pistons
Rotating rod for thread
- latheRotating shaping machine
- drillHole-boring device
- millingProcessing grain mechanically
- toolingIndustrial machinery preparation
machining · rotation · motor · gearbox · pulley · shaft · bearing · CNC
Rhythmic pulse or pattern
- cyclingRiding on two wheels
- spin classGroup stationary bike workout
- pedalingTurning bike cranks
- PelotonInteractive exercise bike maker
stationary bike · intervals · resistance · watts · heart rate · endurance · training · monitor
Rotating music player
- vinylSynthetic resin plastic
- recordPreserved account or achievement
- platterLarge flat serving dish
- stylusPointed implement for marking
needle · DJ · spinning · pitch control · belt-drive · direct-drive · 33 · 45
tachometer
Rotational speed indicator
horsepower · torque · crankshaft · rev · powerband · displacement · camshaft · valves · pistons · combustion
spindle
Rotating rod for thread
tooling · machining · rotation · motor · gearbox · pulley · shaft · bearing · CNC · grinder
cadence
Rhythmic pulse or pattern
- cyclingRiding on two wheels
- spin classGroup stationary bike workout
- pedalingTurning bike cranks
Peloton · stationary bike · intervals · resistance · watts · heart rate · endurance · training · monitor · speed
turntable
Rotating music player
stylus · needle · DJ · spinning · pitch control · belt-drive · direct-drive · 33 · 45 · 78
rpm'smph
Velocity unit abbreviation
kilometers per hour · feet per second · velocity · knots · mach
rpm'sstandstill
Total cessation of movement
stationary · stillness · stasis · idle · motionless
revolutions, revolution, revolve, revolving, revolved, revolver, revolutionary, revolutionize, per