dai1

Jyutpingdai1
Yaledāi

Definition

A fine-grained, solid grindstone used for polishing and sharpening blades to a smooth finish.

writtendaily actionsother

How it's used

This term is primarily used in formal or technical contexts, often appearing in compound words related to sharpening or refinement. In everyday speech, people typically use 磨刀石 to refer to any sharpening stone. The character itself is rarely used alone in casual conversation.

Measure word

faai3fai

Examples

This whetstone is very fine-grained.
Have you finished sharpening with the whetstone yet?

Common phrases

to learn from each other and improve

Common mistake

Learners often confuse this with general sharpening tools, but it specifically refers to a fine-grained stone used for the final polishing stage rather than the initial coarse grinding.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector