This is the 1758th most frequent Swedish word.
blockera
To block or obstruct.
In this sentence, 'blockera' means physically obstructing the way to prevent passage.
Jag måste blockera vägen temporärt för att dirigera om trafiken.
I need to block the road temporarily to redirect the traffic.
Here, 'blockera' refers to enabling a feature to prevent communication via phone.
Hon försökte blockera min telefonnummer efter grälet.
She tried to block my phone number after the argument.
In this case, 'blockera' is used metaphorically to mean mentally preventing intrusive thoughts.