American English

Definition of inroad noun from the Oxford Advanced American Dictionary



inroad (into something)
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  • something that is achieved, especially by reducing the power or success of something else This deal is their first major inroad into the American market.
  • Idioms
    make inroads into/on something
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    if one thing makes inroads into another, it has a noticeable effect on the second thing, especially by reducing it or influencing it Tax rises have made some inroads into the country's national debt. By the 1950s, television had made great inroads into the territory of the news magazines.
    See the Oxford Advanced Learner's Dictionary entry: inroad