This is the 353rd most frequent Swedish word.
kallar
"Calls" or "names."
In this sentence, 'kallar' means to call or to refer to someone with a specific name or title.
Han kallar mig för vän.
He calls me a friend.
Here, 'kallar' means to call out or summon someone or something for assistance.
De kallar på hjälp.
They are calling for help.
In this usage, 'kallar' refers to calling someone to invite or summon them to a particular place or activity.