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Region: General | Usage example: Listening carefully is a journalist’s stock in trade.

Stock in trade

Meaning

Tools or skills one regularly uses.

Usage

Used when discussing professional habits or resources.

Origin & History

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

Merchants literally kept stock for sale; metaphor expanded.

Elizabethan merchants coined the idea and it persisted in commerce.