English Reference
noun

reliance

n.
US /ɹiˈɫaɪəns/ UK /ɹɪlˈaɪəns/ re·liance UK spelling reliances

  1. 01 B2 Upper Intermediate

    the state of needing someone or something to help you or to work correctly.

    the condition of being dependent on someone or something for support, survival, or functioning.

    Simple

    The country's reliance on imported oil makes it vulnerable to price changes.

    In context

    The company's heavy reliance on a single supplier proved disastrous when the factory overseas was forced to close unexpectedly.

    Usage

    Usually followed by the preposition 'on' or 'upon'.

    Pitfall
    His reliance for his parents is too high. His reliance on his parents is too high.

    The noun reliance is almost always followed by the preposition 'on'.

    independenceself sufficiency
  2. 02 C1 Advanced Formal

    the act of trusting or having confidence in someone or something.

    the act of placing trust or confidence in a person, system, or promise.

    Simple

    You can place total reliance on his word; he never breaks a promise.

    In context

    The legal system requires a high degree of public reliance on the impartiality of the judiciary to function effectively.

    Usage

    Often used with the verbs 'place' or 'put'.

  3. 03 C2 Proficiency ArchaicLiterary

    a person or thing that you can depend on for help.

    a person or thing that serves as a ground of trust or a source of support.

    Simple

    For many years, his older brother was his main reliance in times of trouble.

    In context

    In the absence of a formal pension, the small family farm remained their sole reliance for their later years.

    Teacher's tip

    This sense is rare in modern speech; learners will mostly encounter it in 19th-century literature.

Usage reliance on

They work best as "a first- and last-mile solution" in urban areas, to reduce reliance on cars for short trips.

BBC News· 22 Jul 2026

But she is clear enough about Trump’s reliance on complaisant big media.

The Guardian· 12 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated