roughen up

Language:

Meanings:

1.
British EnglishAmerican Englishneutraltechnical
- To make a surface coarser or less smooth, for example by abrading, sanding, or otherwise increasing its texture to improve adhesion or grip.
2.
British EnglishAmerican Englishinformalcolloquial
- To assault, intimidate, or rough someone up physically; to beat or threaten violence against a person.

Examples:

EN: Furthermore, it's appropriate to roughen up the surface with sandpaper first.
HI: सैंडपेपर के साथ सतह को रेत करना उचित है।

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Sourced from Wiktionary