rocket motor

noun 0.856

jet engine

noun 0.795

ion engine

noun 0.780

nuclear rocket

noun 0.727

rocket ship

noun 0.721

rocket

noun 0.712

solid rocket

noun 0.706

hybrid rocket

noun 0.705

rocket sled

noun 0.683

sounding rocket

noun 0.655

rocketship

noun 0.649

engine

noun 0.643

scramjet

noun 0.642

steam engine

noun 0.641

turbojet

noun 0.639

heat engine

noun 0.639

piston engine

noun 0.635

combustion engine

noun 0.633

rocketry

noun 0.630

air engine

noun 0.628

rocket scientist

noun 0.626

rotary engine

noun 0.619

rocket science

noun 0.616

rocket launcher

noun 0.615

reciprocating engine

noun 0.603

ramjet

noun 0.600

traction engine

noun 0.593

jet pack

noun 0.589

internal combustion engine

noun 0.585

turbopump

noun 0.580

thruster

noun 0.574

engine room

noun 0.573

two-stroke engine

noun 0.571

fire engine

noun 0.565

reaction turbine

noun 0.565

turbofan

noun 0.563

spaceplane

noun 0.560

space shuttle

noun 0.559

microengine

noun 0.559

gas jet

noun 0.559

propulsor

noun 0.557

fighter jet

noun 0.556

space vehicle

noun 0.555

propellant

noun 0.554

rocket-propelled grenade

noun 0.553

hyperdrive

noun 0.553

graphics engine

noun 0.551

missile

noun 0.550

railgun

noun 0.548

search engine

noun 0.547

reactor

noun 0.543

stationary engine

noun 0.543

race car

noun 0.536

ejector

noun 0.531

jet fighter

noun 0.530

nuclear reactor

noun 0.530

jetboat

noun 0.529

database engine

noun 0.529

steam locomotive

noun 0.529

turboprop

noun 0.528

engine block

noun 0.527

spaceship

noun 0.527

dragster

noun 0.526

combustor

noun 0.525

spacecraft

noun 0.524

fusion reactor

noun 0.523

electric motor

noun 0.523

skyrocket

noun 0.518

blastoff

noun 0.518

jet

noun 0.518

fighter plane

noun 0.518

warp drive

noun 0.517

specific impulse

noun 0.516

hot rod

noun 0.514

cruise missile

noun 0.514

siege engine

noun 0.514

fire engine red

noun 0.513

engineman

noun 0.510

space flight

noun 0.510

donkey engine

noun 0.510

engine driver

noun 0.510

turbocharger

noun 0.509

chemical engineer

noun 0.509

turbo

noun 0.509

explosive

noun 0.508

propeller

noun 0.505

fuel rod

noun 0.504

afterburner

noun 0.504

regional jet

noun 0.504

powerboat

noun 0.504

exhaust valve

noun 0.503

turbine

noun 0.503

outboard motor

noun 0.503

racing car

noun 0.502

launch complex

noun 0.502