From Longman Dictionary of Contemporary EnglishRelated topics: Lawmaintenancemain‧te‧nance /ˈmeɪntənəns/●くろまる●くろまる○しろまるW3AWL noun [uncountable]1REPAIRthe repairs, painting etc that are necessary to keep something in good conditionthe cost of repairs and maintenancemaintenance ofThe caretaker is responsible for the maintenance of the school buildings.The theatres were closed on Saturday and Sunday for routine maintenance.Engineers are carrying out essential maintenance work on the main line to Cambridge.an evening class in car maintenancemaintenance crew/man/staff (=someone who looks after buildings and equipment for a school or organization)2CONTINUE/NOT STOPthe act of making a state or situation continuemaintenance ofThe purpose of the UN is the maintenance of international peace and security.The maintenance of a firm currency plays an important part in the battle against inflation.3British EnglishSCL money paid by someone who is divorced to their formerwife or husbandSYN alimonyThey have to find the fathers who abandon their children and make them pay maintenance.Examples from the Corpusmaintenance• The HighwaysDepartment is responsible for the construction and maintenance of bridges and roads.• Analystsassist in developing proceduralguidelines and policiesgoverning the development, formulation, and maintenance of the budget.• The city is paying 30,000ドル in annualmaintenancecosts.• I knew nothing about car maintenance when I first bought my car.• Sales of large-scale data storagedevices also increased strongly, while earnings from computermaintenance services hardly changed.• A car is quite a big expense, especially when you considermaintenance.• There was one majorflaw in this inspiredscheme, no Provision was made for maintenance or replacement.• The training will also include maintenance.• The court will now force him to meet maintenancepayments.• Because there had been no maintenance, the collegebuildings were in a poor state.• I have no job and receive no maintenance from my children's father.• There will be a rollingmaintenanceprogramme of the externalwalls and roof to ensure they continue to be wind and watertight.• The fault was discovered during routinemaintenance work.• Most gasappliancesrequire routine maintenance once a year to ensure safety.• These are equally crucial conditions for the maintenance of democratic government.• Our primaryconcern is the maintenance of discipline in the school.• Aeration used intelligently is a boon to the maintenance of the health and vitality of the fishes.• the maintenance of public roadsmaintenance crew/man/staff• His father also worked there as a maintenance man, retiring after 51 years service.• In both cases this means training for most of the staff, from porters and maintenance staff to librarians.• A secretary, securityguard, or maintenance man should not be ignored.• Then one day all of us on the maintenance crew were watching a bluemovie.• He saw the maintenance crewposed disconsolately on a hill.• The maintenance man, Pedro Mejia, did not mention the swimmers to anyone on the hotel staff.• The maintenance staff has been working 18-hourshifts to bring the hospital into full operation.• And travellingmaintenance crews may not turn up from one year to the next because of the immense areas they have to cover.From Longman Business Dictionarymaintenancemain‧te‧nance /ˈmeɪntənəns/ noun [uncountable]1MANUFACTURINGthe repairs, painting etc necessary to keep something in good condition or working as it shouldThe line will be re-opened once essential maintenance is completed.Technicians were doing routine maintenance work on the aircraft.2when something is continued in the same way or at the same level as beforemaintenance ofThe maintenance of economic growth is very important. →resale-price maintenance3money paid by a DIVORCED person (=someone who has legally ended their marriage) to their former wife or husband, especially towards the cost of looking after their childrenSYNchild support BrE, alimony AmEHe has to pay 500ドル per week maintenance to his ex-wife.