grindstone

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Definitions from WordNet

Noun grindstone has 1 sense

grindstone - a revolving stone shaped like a disk; used to grind or sharpen or polish edge tools
--₁ is a kind of stone; sharpener

Definitions from the Web

Term: Grindstone

Description:

A grindstone is a thick, disk-shaped stone wheel used for sharpening or shaping tools with a repetitive motion.

Senses:

Sense 1 - Tool Sharpening:

In this sense, a grindstone refers to a specifically designed stone wheel used for sharpening various tools, such as knives, chisels, or scythes.

Example Sentence 1: To restore the sharpness of my kitchen knife, I vigorously ran it against the grindstone.

Example Sentence 2: The blacksmith used the grindstone to sharpen the edge of the axe, making it perfect for splitting logs.

Sense 2 - Effort and Hard Work:

This sense refers to the figurative use of the term, where grindstone symbolizes hard work, dedication, or relentless effort.

Example Sentence 1: Anna's success can be attributed to her putting her nose to the grindstone every day, tirelessly working towards her goals.

Example Sentence 2: The construction workers put their shoulders to the grindstone to complete the project on time.