[ˈɪnrəʊd], (Noun)

Definitions:
- an instance of something being encroached on or reduced by something else
(e.g: the firm is beginning to make inroads into the UK market)

- a hostile attack; a raid
(e.g: the inroads and cross-border raiding of the Grahams)


Phrases:

Origin:
mid 16th century (in inroad): from in + road (from an early use in the sense ‘riding’)