rocket engine

noun 0.856

solid rocket

noun 0.754

nuclear rocket

noun 0.714

rocket

noun 0.713

hybrid rocket

noun 0.712

rocket sled

noun 0.707

rocket ship

noun 0.685

sounding rocket

noun 0.665

rocketry

noun 0.660

ramjet

noun 0.646

jet engine

noun 0.646

rocketship

noun 0.636

ion engine

noun 0.629

scramjet

noun 0.627

rocket launcher

noun 0.624

turbojet

noun 0.611

thruster

noun 0.594

motor

noun 0.591

missile

noun 0.587

propulsor

noun 0.586

rotary engine

noun 0.585

rocket scientist

noun 0.581

turbopump

noun 0.571

jet pack

noun 0.571

rocket science

noun 0.571

reaction turbine

noun 0.570

railgun

noun 0.569

propellant

noun 0.567

rocket-propelled grenade

noun 0.567

electric motor

noun 0.564

traction motor

noun 0.562

gas jet

noun 0.560

hyperdrive

noun 0.552

hot rod

noun 0.545

outboard motor

noun 0.543

air engine

noun 0.540

starter motor

noun 0.540

piston engine

noun 0.539

turbofan

noun 0.538

two-stroke engine

noun 0.535

turboprop

noun 0.529

rotor

noun 0.529

combustor

noun 0.529

space vehicle

noun 0.529

combustion engine

noun 0.528

reciprocating engine

noun 0.527

fighter jet

noun 0.525

dragster

noun 0.525

fuel rod

noun 0.524

spaceplane

noun 0.521

electromotor

noun 0.520

two-stroke

noun 0.518

space shuttle

noun 0.518

cruise missile

noun 0.516

roadster

noun 0.516

microengine

noun 0.515

ballistic missile

noun 0.515

moon shot

noun 0.514

powerboat

noun 0.510

specific impulse

noun 0.510

race car

noun 0.510

flying bomb

noun 0.509

engine

noun 0.508

afterburner

noun 0.508

blastoff

noun 0.507

motor car

noun 0.506

turbo

noun 0.506

jetboat

noun 0.505

propulsion

noun 0.504

motor racing

noun 0.503

reactor

noun 0.503

propeller

noun 0.502

motorcycle

noun 0.502

motorized scooter

noun 0.500