occur
US /əˈkɝː/
UK /əˈkɝː/

1.
happen; take place
:
•
The accident occurred at 3 PM.
•
Such events occur rarely.
2.
(of an idea or thought) come into one's mind; suggest itself
:
•
It didn't occur to me that she might be upset.
•
A brilliant idea occurred to him.
3.
exist or be found to be present in a place or under a particular set of circumstances
:
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These plants occur in tropical regions.
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Iron occurs naturally in the earth's crust.