stisnuti

1. to squeeze; to press; to clench
   Stisnuo mi je ruku i nasmejao se. — He squeezed my hand and smiled.
   Stisni dugme i sačekaj lift. — Press the button and wait for the lift.
2. to hug tightly; to clasp
   Mama ga je čvrsto stisnula u zagrljaj. — His mom hugged him tightly.
3. (stisnuti se) to squeeze together; to huddle
   Stisnuli smo se nas petoro na zadnjem sedištu. — The five of us squeezed into the back seat.
   Deca su se stisnula jedno uz drugo od hladnoće. — The children huddled together against the cold.

The imperfective counterpart is stiskati.