present participle of exist
"The existing infrastructure was not strong enough to handle the increased traffic during the festival."
In plain English: To exist means to be real or actually present in the world.
"The old building is existing in such poor condition that demolition seems necessary."
Usage: Do not use "existing" as a main verb; instead, pair it with a form of "to be" (e.g., "is existing") only when emphasizing the continuous nature of a state that should remain permanent. In standard usage, simply say "exists" or "exist" to indicate something is present or real.
That exists, or has existence, especially that exists now.
"The existing building will remain standing until the new construction is complete next spring."
In plain English: Existing means something that is already there and has not been destroyed or removed yet.
"The existing building was renovated to include modern energy-saving features."
Usage: Use existing to describe something that is currently present or in operation at this moment, rather than referring to its creation date. It often contrasts with things that are planned but not yet built or implemented.
Derived from the Latin existens, the present participle of exsistere meaning "to stand out" or "to come into being," it entered English in the late 14th century to describe something that is currently in a state of being.