roach
n. countable B2 Upper Intermediate US //ˈɹoʊtʃ// UK //ɹˈəʊtʃ// roach
n. a common, flat insect that is often found in houses and is usually considered a pest. You might see them at night in kitchens or bathrooms.
n. a large, flat-bodied insect of the order Blattodea, typically regarded as a domestic pest. Often used as a shortened form of 'cockroach' in informal contexts.
I saw a roach scurry under the kitchen cabinet.
The landlord promised to call an exterminator after the tenants reported seeing a roach in the basement.
While many people find the common roach repulsive, these insects are remarkably resilient and have survived for millions of years in diverse environments.
Usage
Commonly used as a clipping of 'cockroach'; in slang, it can also refer to the remains of a smoked cigarette.