›the activity of keeping a building, vehicle, road, etc. in good condition by checking it regularly and repairing it when necessary: Refineries typically schedule yearly maintenance.Components necessary for the maintenance of our fleet of helicopters often have to be ordered from abroad.The city budget for street repair and maintenance was cut for this fiscal year.maintenance work/services/proceduresmaintenance contracts/costsmaintenance workers/staff/crewrail/road/building maintenanceperform/provide/carry out maintenanceWe have a large team of IT staff who provide ongoing system and applications maintenance.bad/poor/routine maintenanceA leak in the pipeline was discovered during routine maintenance and inspection work.
›the process of making sure that something continues in the same way or at the same level: Authorities consider these measures to be necessary for the maintenance of sound health and sanitary conditions at the factory.
›FINANCE, LAWregular payments that a person must make by law in order to support their child or previous marriage partner, for example after a divorce : She continues to receive maintenance payments from her former partner. → See alsoresale price maintenance, total productive maintenance