also: ピンとはる
expression, godan verb (-ru)
Describes making something taut, such as a rope, string, or one's posture. Often used figuratively for bracing oneself mentally.
See also: ピンと
ロープをぴんと張ってください。
Please pull the rope tight.
試験の前は気持ちをぴんと張らなければならない。
Before an exam, you have to brace yourself mentally.