siliti

1. to force; to make
   Ne sili dete da jede ako nije gladno. — Don't force the child to eat if he's not hungry.
   Niko te ne sili da ostaneš. — Nobody is making you stay.
2. (siliti se) to force oneself; to try too hard
   Silila se da se nasmeje, ali nije uspela. — She tried to force a smile, but couldn't.
   Ne sili se da budeš duhovit. — Don't try so hard to be funny.
3. colloq. derog. (siliti se) to swagger; to throw one's weight around
   Pred drugarima se stalno sili, a kad ostane sam, ćuti. — He's always throwing his weight around in front of his friends, but when he's alone he keeps quiet.

Construction: siliti koga da + present tense, or siliti koga na nešto.