J

J – Juliet (JULIETT)

J-staff

J-watch

J1

J2

J3

J4

J5

jab

jabbing unit

jack

jack and pinion rack

jack boot / jack-boot

jack-in-the-box

Jack-in-the-box effect

Jack Johnson

jack knifing

jack lift

jack lift point

jack pad

jack staff / jackstaff

jack-up

jacket

jacket cast with the cylinder

jacket cooling

jacket hoop

jacket tube

jacketed

jacketed bullet

jacketed coated lead bullet

jacketed design

jacketed hollow-point bullet

jacketed round nose bullet

jacketed soft point (JSP)

Jackie

jacking point cover plate

jackknife bridge

Jackline

jackscrew

jackshaft

jackshaft differential carrier

jackshaft propeller shaft

Jacob's ladder

jagged front

jagged picket fence

jaheemy

jaline

jam

jam a leave

jam a road

jam cleat

jam emissions (v)

jam-free

jam jar

jam pot

jam-resistant communication

jam the accelerator down

jam the comm

jam to signal ratio (J/S ratio)

jammed round

jammer

jammer-carrying drone

jammer hunter

jammer pod

search jammer

Jammin’ Jenny

jamming

jamming battery

jamming countermeasures

jamming coverage

jamming device

jamming environment

jamming homing

jamming homing set

jamming locator

jamming of beacons and blind landing (systems)

jamming-proof modules

jamming pulse

jamming radar

jamming radar coverage indicator

jamming report

jamming signal

jamming station

jamming system

jamming transmitter

jamming unmanned aircraft system

jamming vulnerability

jamming warfare

jamproof

jamproof guidance system

jamproof weapon

JAN grid / Joint Army-Navy grid

jankers

jankers wallah

Japan Air Self-Defense Force (JASDF) / Japanese Air Force

Japan Coast Guard (JCG)

Japan Self-Defense Forces (JSDF)

Japanese MSAS

Japanese Occupation Ribbon

Japanese sword

jarhead

jarheads

joint air-to-surface stand-off missile, extended range (JASSM-ER)

Javelin (FGM-148)

javelin formation

jaw

jaw rudder

jaw spanner

jawbone

jawbone corporal

jawbone promotion

jawbone sergeant

jawing

jeep

jeep ambulance

jeep carrier

jeep-mounted

jeep-mounted missile

jeep-mounted radio

jeep patrol

jeep rocket launcher

jeep trailer

jeepable

jeepborne radio control

jeephead

jeeter

jellied gasoline

jello

jello effect

jelly bean

jeopardize flight safety

jerk

jerk-pump fuel system

Jerry

jerrycan

jerrycan = jerrican

Jersey Blues (Division)

Jesus nut

jet

jet action

jet aircraft

jet aircraft fuel

jet amplifier

jet-assisted take-off

jet-assisted takeoff

jet blast deflector

jet bomb

jet bomber

jet booster

jet continuity

jet control

jet-deflection (deviation) control system

jet divergence

jet-driven

jet engine

jet exhaust

jet fighter

jet flap

jet flap aerofoil

jet flap aerofoil section

jet-flapped wing

jet fuel

jet gun

jet helicopter

jet impingement

jet injection gun (hypodermic)

jet-lift craft

jet navigation chart

jet noise prediction technique

jet nozzle

jet of fluid

jet-powered

jet-powered drone

jet projectile

jet-propelled

jet-propelled drone

jet-propelled surveillance drone

jet propulsion

jet-propulsion center

jet propulsion engine

jet-propulsion engine

jet pump

jet ring

jet robot

jet spread

jet standard atmosphere (JSA)

jet stream

jet target

jet thrust

jet trainer

jet tube

jet vane

jet velocity

jetavator

jetomic

jettison

jettison fuel tank kit

jettison nozzle

jettisonable

jettisonable auxiliary fuel tank