energyen‧er‧gy /ˈenədʒi $ -ər-/ ●●●S2W1AWL noun (plural energies)1TP[uncountable] power that is used to provide heat, operate machines etcThe water is heated using energy from the sun.The problem with nuclear energy is dealing with the waste. 2ENERGETIC[uncountable] the physical and mentalstrength that makes you able to do thingsWhere do those kids get their energy from?Are you suffering from a lack of energy?The city is full of creative energy.I really put a lot of energy into what I do. He wants to conserve his energy for next week's game (=use as little energy as possible now, so that you have more energy to use later).3[uncountable] a special power that some people believe exists in their bodies and in some buildingsThere was a lot of energy in the room this morning – did you feel it?4[uncountable] technical in physics, the ability that something has to work or movekinetic energy5 →somebody’s energiesCOLLOCATIONS – Meaning 1: power that is used to provide heat, operate machines etcverbsgenerate/produce energya power plant that generates energy from household wastesupply/provide energyThe wind farm will provide enough energy for 100,000 homes.store energyBatteries store the energy from the solar panels.use energyWashing machines use a lot of energy.conserve energy (=not waste any energy)An efficient boiler will conserve energy and save you money.ADJECTIVES/NOUN + energysolar energyThe water pump is powered by solar energy.nuclear/atomic energya report on the cost of nuclear energywind/wave energyThe windmill uses wind energy to crush grain and pump water.renewable energy (=energy such as solar or wind energy that can be replaced naturally)Switching to sources of renewable energy will reduce carbon emissions.alternative energy (=energy from sources other than oil, coal, or nuclear energy)It is the first form of public transport to be powered by alternative energy.clean energy (=which does not cause pollution)Iceland possesses sufficient quantities of clean energy sources that it does not need to rely on fossil fuels. energy + NOUNenergy use30% of all our energy use is in the home.energy efficiencyThis guide provides advice on ways of improving energy efficiency. energy consumptionWe all need to reduce our energy consumption.energy needs/requirements65% of the country’s energy needs are met by imported oil.energy productionhydroelectricity and other methods of energy productionenergy resourcesThe world’s energy resources are being used up at an alarming rate. an energy shortageCalifornia experienced energy shortages that in turn led to power outages.an energy crisisEurope could soon face an energy crisis.energy suppliesWe must secure the country’s future energy supplies.an energy companya state-owned energy companythe energy industryregulation of the energy industryan energy billWe are looking at ways of cutting our energy bill.energy pricesEnergy prices are likely to rise significantly in the near future.phrasesa source/form of energyCoal is more expensive than other sources of energy.the demand for energyThe demand for energy in developing countries will continue to grow.COLLOCATIONS – Meaning 2: the physical and mental strength that makes you able to do thingsverbshave energyHe always has plenty of energy!put some energy into somethingTry to put more energy into your game.channel your energy into something (also devote your energy to something) (=use most of your energy doing something)She should channel more of her energy into her studies.conserve energy (=use as little energy as possible)The lions spend much of the day sleeping, conserving energy for the hunt.run out of energy (=have no more energy)The players seemed to be running out of energy.lack energy (=have no energy)She lacked the energy to continue.something takes/requires energyClimbing with a full backpack takes a lot of energy.your energy flags (=it becomes less and you become tired)After eight laps of the running track, my energy began to flag.phrasesbe full of energy/be bursting with energy (=have a lot of energy)I felt happy and full of energy.The stage was bursting with energy.a lack of energyCommon symptoms include a loss of appetite and a lack of energy.a burst of energy (=a short sudden increase in energy)He tried to summon up one final burst of energy, but his legs wouldn’t respond.adjectivesboundless energy (=that seems to have no limit)The children ran up and down the beach with boundless energy.youthful energy (=energy that young people naturally have)She is very talented and full of youthful energy.creative energy (=that makes you want to write, draw, paint etc)We have seen an explosion of creative energy from the band this year.nervous energy (=energy that comes from being nervous or excited)She seems to thrive on nervous energy.energy + NOUNenergy levels (=the amount of energy someone has)Regular exercise increases your energy levels.