ENGLISH
REFERENCE

roaring

adj.
US //ˈɹɔɹɪŋ// UK //ɹˈɔːɹɪŋ// roar·ing
  1. 1 very successful (adj.)
    B2 Upper Intermediate Informal

    extremely successful, busy, or full of energy.

    characterised by great success, prosperity, or vigorous activity.

    Example

    The new restaurant was a roaring success and had a long waiting list.

    Example

    Despite the economic downturn, the tech startup became a roaring success, securing millions in venture capital within its first year.

    Usage

    Commonly used in the fixed phrase 'roaring success'.
  2. 2 loud and powerful (adj.)
    B2 Upper Intermediate

    making a very loud, deep, and continuous noise.

    producing or characterised by a loud, deep, and prolonged sound.

    Example

    We sat by the roaring fire to warm up after our walk in the snow.

    Example

    The hikers could hear the roaring waterfall long before they emerged from the dense forest into the clearing.
Origin

By surface analysis, roar + -ing.

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

Last updated June 20, 2026