This is the 2322nd most frequent French word.
nulle
"Nulle" means "none" or "not any" in English, and can also mean "useless" or "bad" depending on context.
In this sentence, 'nulle' is used as an adjective to describe a person's lack of skill in a subject.
Je suis nulle en mathématiques.
I am bad at mathematics.
Here, 'nulle' is used in the adverbial phrase 'nulle part,' meaning 'nowhere'.
Il n’y a nulle part où aller.
There is nowhere to go.
In this case, 'nulle' is used as an adjective to indicate that something is invalid or ineffective.