to stiffen
01
to become firm, rigid, or less flexible
文法情報
規則的
現在時制
stiffening
単純過去
stiffened
過去分詞
stiffened
例
My fingers stiffen quickly in cold weather.
02
make stiff or stiffer
例
Starch stiffens the fabric and helps it hold its shape.
03
to make rules, penalties, or restrictions stricter or more severe
例
The government plans to stiffen penalties for illegal dumping.
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stiffener
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