GRE word list

to work steadily and continuously at a task or trade; to engage in a profession or activity with persistence and dedication (distinct from the common sense of 'to use' or 'to apply' a tool or object)

Definition Sentence

The veteran carpenter has spent over forty years plying his trade in rural communities, mastering every aspect of handcrafted furniture.

Also engage in · practice · maintain · persevere in · conduct