Definition from macmillandictionary.com
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Driving on mountain roads always makes me nervous.
I got very nervous waiting for my turn to be called.
She was nervous about walking home so late.
He’s always been a little nervous of change.
Callum gave a slightly nervous laugh.
headaches caused by nervous tension
a nervous, fidgety young man
a nervous complaint
I'm so nervous for Thursday's exam!
He shifted in his chair nervously.