How do you say "Relax!" in Korean
Like when someone is upset and you want them to just 'chill' or not worry about it. In English we can say :

Relax!
Chill. ~ Chill out! (more of a black expression)
Cool it!
Calm down! etc......

I don't need EVERY way to say --- just the most common please. And most simple / what your friend might say to you if you failed an important exam or something....

Hey, relax!

Thanks everyone. Please include the exact English meaning.

Question

How do you say "Relax!" in Korean
Like when someone is upset and you want them to just 'chill' or not worry about it.  In English we can say :

Relax!
Chill.   ~  Chill out! (more of a black expression)
Cool it!  
Calm down!   etc......

I don't need EVERY way to say --- just the most common please.  And most simple / what your friend might say to you if you failed an important exam or something....

Hey, relax!

Thanks everyone.  Please include the exact English meaning.

Answer

진정해 mean exactly same, skipping the polite expression as i'm sure you know =)

FYI

고정하세요 can be used respectfully

고정하시옵소서 to a King or royal family in old Korean
royal spoken Korean

Answer

i'd say "괜찮아..너무 걱정하지마" when a friend of mine failed an exam :) 
this expression would be very nice when somebody got depressed or upset a bit.
"괜찮아..너무 걱정하지마" can be "hey..calm down.. don't worry about that too much"
i think "진정해" sounds stronger for me:)

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