English Reference
verb · noun

maintaining

v. · n.
US /meɪnˈteɪnɪŋ/ UK /meɪntˈeɪnɪŋ/ main·tain·ing

  1. 01 B2 Upper Intermediate

    v.keeping something like a building, car, or road in good working order.

    v.the act of performing regular upkeep on physical infrastructure or equipment to prevent deterioration.

    Simple

    Maintaining your car regularly will help it last much longer.

    In context

    Maintaining the historic bridge requires specialized engineering teams to inspect the ironwork for signs of fatigue every six months.

    Usage

    Often used as a gerund acting as the subject of a sentence.

  2. 02 B2 Upper Intermediate

    v.keeping a situation or a feeling going without letting it stop.

    v.sustaining a particular state, condition, or level of activity over a period of time.

    Simple

    Maintaining a healthy diet is easier if you plan your meals in advance.

    In context

    The central bank is focused on maintaining price stability despite the volatile fluctuations in the global energy market.

    Usage

    Takes a direct object representing the state or condition being preserved.

  3. 03 C1 Advanced Formal

    v.continuing to say that something is true, even if other people do not believe you.

    v.strongly asserting or adhering to a position or statement in the face of opposition or doubt.

    Simple

    He is still maintaining that he was at home during the accident.

    In context

    Despite the overwhelming evidence presented by the prosecution, the defendant remained steadfast in maintaining his innocence throughout the trial.

    Usage

    Often followed by a 'that' clause.

  4. 04 B2 Upper Intermediate

    n.the work needed to keep something in good condition.

    n.the systematic process of preservation or the functional upkeep of a system.

    Simple

    The maintaining of the garden takes up most of her weekend.

    In context

    The constant maintaining of the software is necessary to protect the network against emerging security threats.

    Teacher's tip

    While 'maintaining' can be a noun, 'maintenance' is much more common for the general concept of upkeep.

Usage maintaining a lively

Newby said: “This is an important claim which raises serious questions about the ability of a prisoner maintaining his innocence to communicate with journalists and supporters at a critical stage of his case.

The Guardian· 14 Aug 2026

Back on Earth, the blackout will be a tense time for those with the job of maintaining contact with the spacecraft.

BBC News· 5 Apr 2026
This entry
Level B2 · Upper Intermediate
Frequency Common
Updated