block out

phrasal verb

blocked out; blocking out; blocks out

1

: to hide or cover something so that it cannot be seen, felt, or heard

Clouds blocked out the sun.

We put on music to block out the sound of the traffic.

2

: to force oneself not to think about (something)

He tried to block the event out.

3

: to ignore (something)

blocking out distractions

see also block entry 2 sense 2