Learner's definition of APPLAUSE
: a show of approval or appreciation at a play, speech, sporting event, etc., in which people strike their hands together over and over
He accepted the award to thunderous applause. [=people applauded very loudly as he accepted the award]
The announcement was greeted with applause and cheers.
The audience burst into applause. [=began applauding/clapping loudly]
The audience gave the performers a big round of applause. [=hand]