Meaning of “empty” - Learner’s Dictionary

empty

adjective uk us /ˈempti/
CONTAINING NOTHING

A2 If something is empty, it does not contain any things or people:

an empty house/street
The train was completely empty when it reached London.
NO MEANING

having no meaning or value:

an empty promise/threat
emptiness noun [ U ]

(Definition of “empty adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)