chestnut
noun C1
Plain meaning
a brown nut or a reddish-brown colour
Exam-register meaning
In academic or exam contexts, it means a brown nut or a reddish-brown colour, usually in a more formal register.
In context
naturalThe article mentioned chestnut as one of the main issues.
examThe author examines chestnut in relation to social change, public policy, and institutional responsibility.
Common collocations
a clear chestnutevidence of chestnutwidespread chestnut
Watch out
Do not use “chestnut” as a vague high-level replacement; make sure the sentence really needs this specific noun.