Meaning of “below” - Learner’s Dictionary

below

adverb, preposition uk us /bɪˈləʊ/
POSITION

A1 in a lower position than someone or something else:

He could hear people shouting below his window.
Send your answers to the address below (= lower on the page or on a later page).
LESS

B1 less than an amount or level:

The temperature there rarely drops below 22°C.
His work is below average.
RANK

lower in rank:

Monica is a grade below me.

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