English Reference
noun

maintenance

n.
US /ˈmeɪntənəns/ UK /mˈeɪntənəns/ main·te·nance UK spelling maintenance's, maintenance's

  1. 01 B2 Upper Intermediate

    the work of keeping a building, machine, or system in good condition by checking or repairing it regularly.

    the process of preserving a condition or situation or the state of being preserved; specifically, the routine functional upkeep of property or equipment.

    Simple

    The school was closed for a week for essential building maintenance.

    In context

    The airline's rigorous maintenance schedule ensures that every aircraft undergoes a thorough mechanical inspection after a set number of flight hours.

    Usage

    Often used as an uncountable noun or as an attributive noun before another word like 'crew' or 'costs'.

  2. 02 C1 Advanced British EnglishFormal Law

    money that someone pays regularly to help support a child or a former husband or wife after a divorce.

    financial provision made by one person for another, typically following the dissolution of a marriage or for the upbringing of a child.

    Simple

    He has been paying monthly maintenance to his ex-wife since their divorce.

    In context

    The court ordered the defendant to provide substantial maintenance payments to ensure the children could remain in their current private school.

    Teacher's tip

    In American English, 'alimony' is more common for a spouse, while 'child support' is used for children; 'maintenance' is the standard legal term in the UK.

    alimonychild supportsubsistence
  3. 03 C1 Advanced TechnicalAcademic Biology

    the natural processes that keep a living thing alive and healthy.

    the collection of metabolic processes required to keep an organism alive and functioning at a constant level.

    Simple

    The body uses a lot of energy just for basic cell maintenance.

    In context

    Even during periods of inactivity, the organism requires a baseline caloric intake to support essential cellular maintenance and repair.

  4. 04 C1 Advanced TechnicalDialect Medicine

    medicine that a person takes every day to manage a long-term health condition.

    a course of medical treatment or medication intended to keep a chronic condition under control rather than to cure it.

    Simple

    She takes her maintenance pills every morning to keep her blood pressure stable.

    In context

    The physician adjusted the maintenance dose of the insulin to better manage the patient's fluctuating glucose levels.

    Teacher's tip

    This sense is particularly common in Philippine English as a colloquial way to refer to daily prescription drugs.

Usage maintenance all the work · maintenance costs · maintenance of

Maintenance records show the engine was involved in four suspected bird strikes over the previous year, with remains found after two of them.

Al Jazeera· 14 Aug 2026

With garden maintenance becoming unmanageable, she became terrified of eviction.

The Guardian· 11 Aug 2026

From Middle English mayntenaunce, from Old French maintenance, from maintenir, from Latin manus tenēre (“to hold in the hand”). By surface analysis, maintain + -ance. Note that maintain has undergone a sound and spelling change, hence is spelt with -tain-, rather than the -ten- still found in maintenance.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Old French maintenance
Level C1 · Advanced
Frequency Common
Updated