exist (v)

I don't think ghosts exist.
Poverty still exists in this country.
The ancient ruins serve as a reminder that a once-thriving civilization used to exist on this site.
Some believe that extraterrestrial life may exist in other parts of the universe.
The concept of time is said to exist as a fundamental dimension in the fabric of the universe.
Despite the challenges, a sense of hope and resilience continues to exist among the community members.