| Subject | English | Irish |
| transp., mech.eng. | aero engine | inneall aerárthaigh |
| transp., mech.eng. | aircraft engine | inneall aerárthaigh |
| environ. | aircraft engine emission The formation and discharge of gaseous and particulate pollutants into the environment, especially the stratosphere, chiefly from airplanes, helicopters and other high-altitude aircrafts | astú as inneall aerárthaigh |
| transp., mech.eng. | allowable engine operating time | ré oibrithe incheadaithe innill |
| transp., mil., grnd.forc., mech.eng. | approval of compression ignition C.I. engine | cineálcheadú innill adhainte chomhbhrú |
| transp., tech., mech.eng. | arrangement of the engine | leagan amach an innill |
| mech.eng. | axial engine | inneall aiseach |
| transp., avia., mech.eng. | built-up engine | inneall comhthógtha |
| transp. | by-pass engine | inneall turba-fean |
| transp., mech.eng. | by-pass turbine engine | inneall turba-fean |
| transp., mech.eng. | by-pass turbine engine | inneall tuirbín seach-chonaire |
| transp., mech.eng. | by-pass turbine engine | imoibreoir tuirbín |
| gen. | cab-over engine vehicle | feithicil le cábán os cionn an innill |
| transp., mech.eng. | carburettor engine | inneall carbradóra |
| mech.eng. | closed cycle engine | inneall le ciorcad iata |
| mech.eng. | combustion engine | inneall dócháin |
| environ. | combustion engine An engine that operates by the energy of combustion of a fuel | inneall dó |
| transp., avia., mech.eng. | compound turbine engine | inneall tuirbín iolrach |
| mech.eng. | compression ignition engine | inneall adhainte comhbhrú |
| gen. | compression ignition engine | inneall díosail |
| transp., avia., mech.eng. | contra flow turbine engine | inneall tuirbín frithshreibhe |
| transp., avia., mech.eng. | contra flow turbine engine | inneall tuirbín frithshreabh |
| transp., avia., mech.eng. | critical engine | inneall criticiúil |
| gen. | diesel engine | inneall díosail |
| environ. | diesel engine An internal combustion engine operating on a thermodynamic cycle in which the ratio of compression of the air charge is sufficiently high to ignite the fuel subsequently injected into the combustion chamber | inneall díosail |
| mech.eng. | diesel engine | inneall adhainte comhbhrú |
| mech.eng. | diesel engine with direct injection | inneall díosail insteallta dhírigh |
| mech.eng. | direct injection diesel engine | inneall díosail insteallta dhírigh |
| transp., mech.eng. | direct lift engine | inneall dírardaitheach |
| transp., avia. | ducted fan engine | inneall turba-fean |
| mech.eng. | ducted fan turbine engine | inneall tuirbín le gaothrán duchtaithe |
| transp. | ducted-fan turbine engine | inneall turba-fean |
| transp., mil., grnd.forc., mech.eng. | engine brake | coscán innill |
| mech.eng. | engine capacity | toilleadh innill |
| transp., tech. | engine capacity | toilleadh sorcóra |
| transp., avia., mech.eng. | engine car | naoisil innill |
| tech. | engine compartment encapsulation system | córas imchochlaithe urrann an innill |
| transp., mech.eng. | engine control | rialú innill |
| transp., mech.eng. | engine crankcase | cás an chromáin |
| mech.eng. | engine induction manifold | ilphíobán ionduchtaithe |
| transp., mech.eng. | engine misfire | loiceadh adhainte |
| transp., avia., mech.eng. | engine pod | cochall innill |
| transp., mech.eng. | engine RPM | luas innill |
| transp., mech.eng. | engine's revolutions per minute | luas innill |
| transp., mech.eng. | engine speed | luas innill |
| transp., mech.eng. | engine stalling | loiceadh innill |
| transp., mech.eng. | engine stalling | loiceadh |
| transp., avia. | engine type-certificate data sheet | bileog sonraí maidir le deimhniú cineál innill |
| mech.eng. | external combustion engine | inneall dócháin sheachtraigh |
| environ. | four stroke engine An internal combustion engine whose cycle is completed in four piston strokes; includes a suction stroke, compression stroke, expansion stroke, and exhaust stroke | inneall ceithre bhuille |
| mech.eng. | four-stroke cycle engine | inneall ceithre bhuille |
| mech.eng. | four-stroke engine | inneall ceithre bhuille |
| mech.eng. | free piston engine | inneall saorloineach |
| mech.eng. | free turbine engine | inneall saorthuirbín |
| environ. | gas engine An internal combustion engine that uses gaseous fuel | inneall gáis |
| transp., mech.eng. | gas turbine engine | inneall gástuirbín |
| environ. | gasoline engine An internal combustion engine that uses a mixture of air and gasoline vapour as a fuel | inneall faoi thiomáint peitril |
| comp., MS | Gesture Engine | Inneall Gothaí (An engine that specifically recognizes and processes touch input and multi-touch input as commands) |
| mech.eng. | H engine | inneall H |
| chem., mech.eng. | high viscosity engine oil | ola ardslaodachta |
| mech.eng. | IC engine | inneall dócháin inmheánaigh |
| transp., mech.eng. | inboard engines | innill istigh |
| mech.eng. | indirect injection diesel engine | inneall díosail insteallta indírigh |
| mech.eng. | internal combustion engine | inneall dócháin inmheánaigh |
| fin., polit., transp. | internal combustion piston engine | inneall loiní dócháin inmheánaigh |
| mech.eng. | inverted engine | inneall inbhéartaithe |
| transp., avia., mech.eng. | ion engine | ianinneall |
| transp., mech.eng. | lift engine | inneall ardúcháin |
| transp., avia., mech.eng. | lightweight turbojet engine | inneall éadrom turbascairde |
| chem., mech.eng. | lox-hydrogen engine | inneall ocsaigine-hidrigine leachtaí |
| chem., mech.eng. | lox-hydrogen engine | ineall faoi thiomáint ocsaigine leachtai agus hidrigine leachtaí |
| transp., nautic., fish.farm. | main engine | príomhinneall |
| transp., nautic. | main engine room | príomhsheomra innill |
| transp. | manufacturer's engine code | cód innill an mhonaróra |
| transp., mech.eng. | multi-engined | il-inneall |
| transp., mil., grnd.forc., mech.eng. | no load engine speed | luas réchasta |
| transp., mil., grnd.forc., mech.eng. | parent engine | máthair-inneall |
| energ.ind., mech.eng. | positive-ignition engine | inneall adhainte deimhní |
| transp., avia. | propjet engine | inneall turba-liáin |
| transp., mech.eng. | propulsion engine | inneall tiomána |
| transp., mil., grnd.forc. | rated engine power | cumhacht rátaithe innill |
| transp., mech.eng. | reciprocating engine | inneall loiní frithingeacha |
| transp., mech.eng. | reciprocating piston engine | inneall loiní frithingeacha |
| comp., MS | search engine | inneall cuardaigh (A program that searches for key words in documents, databases, Internet content or other files) |
| IT | search engine advertising | fógraíocht inneall cuardaigh |
| IT | search engine advertising | fógraíocht ar innill chuardaigh |
| IT | search engine optimisation | optamú inneall cuardaigh |
| comp., MS | search engine optimization | optamú inneall cuardaigh (The act of modifying the pages of a Web site so that its content is more easily discoverable by Internet search engines) |
| transp., avia. | single piston-engined aeroplane | eitleán aon innill loiní |
| energ.ind., mech.eng. | spark-ignition engine | inneall adhainte deimhní |
| commun. | Statistical Heuristic Engine to Reliably and Intelligently Fight Fraud | an tInneall Heorastúil Staidrimh chun an Chalaois a Chomhraic go hIontaofa agus go Cliste |
| transp., construct. | switch air engine | aerinneall ladhróige |
| transp., avia. | turbofan engine | inneall turba-fean |
| transp., avia., mech.eng. | turbo-jet engine | inneall turba-scairde |
| environ. | two-stroke engine An internal combustion engine whose cycle is completed in two strokes of the piston | inneall débhuilleach |
| tech. | "vee" engine configuration | cumraíocht V-innill |
| IT | widget engine | giuirléid |