1.
that (over there)
A demonstrative pronoun referring to something far from both the speaker and listener.
What happened with that thing we were talking about yesterday?
Shared knowledge usage
あれ is a demonstrative pronoun for things far from both the speaker and listener. Part of the ko-so-a-do system.
Related words
Usage
あれ can also refer to something both speaker and listener know about, even if not physically present: あれ、どうなった? (What happened with that thing?)
Watch out
To modify a noun, use あの instead: あの本 (that book over there), not あれ本.
Related Words
Related:
これ (this (near speaker))
Related:
それ (that (near listener))
Related:
どれ (which one (question))
Compare:
あの (modifier form: あの + noun)