Bedeutung von “under” — Learner’s Dictionary

under

adverb us uk /ˈʌndər/
BELOW THE SURFACE

below the surface of something:

The child was swimming and suddenly started to go under.
LESS THAN

less than a particular number, amount, or age:

I want a computer that is £500 or under.

(Definition von “under adverb” aus dem Cambridge Learner's Dictionary © Cambridge University Press)