kāirèn

开刃儿

Word · VerbTraditional開刃

sharpen a new blade; hone

Tone colorsmāmámǎmàma

Meanings

1 sense · 3 examples
1.

verb

to sharpen a new knife or blade before first use; to hone; to whet

technical

Technical term from metalwork and crafts. The character 抢 (qiǎng) here specifically refers to the initial rough sharpening or whetting of a new blade to create an edge.

Xīn新
mǎi买
de的
cài菜
dāo刀
xū需
yào要
kāi开
rèn刃
cái才
néng能
yòng用
 。

A newly purchased kitchen knife needs to be sharpened before it can be used.

Zhè这
bǎ把
jiǎn剪
dāo刀
hái还
méi没
kāi开
rèn刃
 ,
jiǎn剪
bù不
dòng动
zhǐ纸
 。

These scissors haven't been sharpened yet and can't cut through paper.

Show 1 more example
Lǎo老
shī师
fu傅
zhèng正
zài在
gěi给
nà那
bǎ把
bǎo宝
jiàn剑
kāi开
rèn刃
 。

The master craftsman is currently sharpening that precious sword.