| Subject | English | Irish |
| econ., transp., mech.eng. | adhesion utilisation curve | cuar úsáide maidir le greamaitheacht |
| econ., transp., mech.eng. | adhesion utilisation curve | cuar úsáide greamaitheachta |
| environ. | energy utilisation No definition needed | úsáid fuinnimh |
| environ. | energy utilisation pattern | patrún úsáide fuinnimh |
| health. | food utilisation | úsáid bia |
| environ. | landscape utilisation using landscape or parts of it (i.e. for tourism, sports or agriculture); Using landscape or parts of it for tourism, sports, or agriculture | úsáid tírdhreacha |
| environ. | local resource utilisation The use of a source of supply from a municipal or regional area, which can be readily drawn upon when needed | acmhainní áitiúla a úsáid |
| agric. | optimum utilisation | go n-úsáidfear mar is fearr is féidir |
| agric. | optimum utilisation | an úsáid is fearr is féidir |
| gen. | prudent and rational utilisation of natural resources | acmhainní nádúrtha a úsáid go stuama réasúnach |
| R&D., energ.ind. | rational utilisation of energy | úsáid réasúnach fuinnimh |
| environ. | resource utilisation No definition needed | úsáid acmhainní |
| agric. | stock utilisation register | clár maidir le húsáid stoic |
| stat., el. | time utilisation factor of a thermal unit | fachtóir úsáid ama aonaid theirmigh |
| el. | utilisation factor | fachtóir úsáide |
| fin. | utilisation of appropriations | cur chun feidhme leithreasaí |
| environ. | utilisation of calorific value Calorific value is the heat per unit mass produced by complete combustion of a given substance. Calorific values are used to express the energy values of fuels; usually these are expressed in megajoules per kilogram. They are also used to measure the energy content of foodstuffs; i.e. the energy produced when the food is oxidized in the body. The units here are kilojoules per gram. Calorific values are measured using a bomb calorimeter (apparatus consisting of a strong container in which the sample is sealed with excess oxygen and ignited electrically. The heat of combustion at constant volume can be calculated from the resulting rise in temperature) | luach calrach a úsáid |
| health. | utilisation of food | úsáid bia |
| environ. | utilisation of pesticides Use of chemical or biological substances to deliberately kill unwanted plants or animals | lotnaidicídí a úsáid |
| market. | utilisation ratio | cóimheas úsáide |
| transp. | vehicle utilisation | úsáid feithicle |
| environ. | waste heat utilisation Waste heat applications include space heating and refrigeration in urban areas, thawing of ice-bound seaways, agricultural use to stimulate growth and to extend the growing season and in aquaculture to stimulate the growth of algae, shellfish, and other potential marine food sources | dramhtheas a úsáid |
| environ. | water utilisation Three types of water use are distinguished: 1. withdrawal, where water is taken from a river, or surface or underground reservoir, and after use returned to a natural water body, e.g. water used for cooling in industrial processes. Such return flows are particularly important for downstream users in the case of water taken from rivers; 2. consumptive, which starts with withdrawal but in this case without any return, e.g. irrigation, steam escaping into the atmosphere, water contained in final products, i.e. it is no longer available directly for subsequent uses; 3. non-withdrawal, i.e. the in situ use of a water body for navigation (including the floating of logs by the lumber industry), fishing, recreation, effluent disposal and hydroelectric power generation | úsáid uisce |