Exist may refer to: *

Existence Existence is the state of having being or reality in contrast to nonexistence and nonbeing. Existence is often contrasted with essence: the essence of an entity is its essential features or qualities, which can be understood even if one does ...

eXist eXist-db (or eXist for short) is an open source software project for NoSQL databases built on XML technology. It is classified as both a NoSQL document-oriented database system and a native XML database (and it provides support for XML, JSON, HTM ...

, an open source database management system built on XML *

Existential quantification Existentialism is a family of philosophy, philosophical views and inquiry that explore the human individual's struggle to lead an Authenticity (philosophy), authentic life despite the apparent Absurdity#The Absurd, absurdity or incomprehensibili ...

, in logic and mathematics (symbolized by ∃, read "exists") * Energetic X-ray Survey Telescope, a proposed hard X-ray imaging all-sky deep survey mission * ''Exist'' (album), a studio album by Exo * Exists (band), formerly Exist, a Malaysian band * ''Exists'' (film), a 2014 horror film * XIST (gene) X inactive specific transcript, a gene which inactivates extra copies of X-chromosomes.

See also