come upon

US /kʌm əˈpɑːn/

UK /kʌm əˈpɑːn/

1.

to find or meet by chance

:

•

I came upon an old photo album while cleaning the attic.

•

As we walked through the forest, we suddenly came upon a hidden waterfall.

:

discover encounter stumble upon happen upon run across

2.

to attack or affect suddenly and unexpectedly

:

•

A sudden storm came upon them while they were hiking.

•

A feeling of dread came upon him as he entered the old house.

:

befall overtake strike assail overwhelm

:

upon come come in comely come by come in for come into