whetstone

grindstone
(bound form) a coarse grindstone or whetstone
to sharpen
(bound form) to sharpen a blade by grinding; to whet
to temper oneself
(bound form) to discipline, cultivate, or refine oneself; to steel oneself

Cross-References

Same as

Frequency

Character
Written text
4,760th most common 1.21 per million
Movie subtitles
4,508th most common 0.210 per million appears in 0% of films
Word
Written text
1.94 per million

Details

Simplified
Strokes
19
Unicode
U+792A

Sources