This is the 178th most frequent Portuguese word.
novos
"Novos" means "new" (plural form) in English.
In this sentence, 'novos' describes 'desafios', adding the attribute of being recent or not previously encountered to the challenges.
Estamos prontos para enfrentar novos desafios.
We are ready to face new challenges.
The word 'novos' is used as an adjective describing the noun 'alunos', specifying their novelty or recent enrollment.
Os alunos novos chegaram na escola hoje.
The new students arrived at school today.
Here, 'novos' acts as an adjective modifying the noun 'sapatos', indicating their recent purchase or unused condition.