This is the 2659th most frequent Portuguese word.
nega
"Nega" in Portuguese is a colloquial term meaning "denial" or "negation," and can also refer to "she denies" or function as an affectionate term for a woman ("girl" or "darling") in some contexts.
In this sentence, 'nega' conveys that the person is rejecting or saying that the charges are not true.
Ela nega todas as acusações contra ela.
She denies all charges against her.
Here, 'nega' suggests that the cloudy day obstructs or hides the view.
O dia ficou tão nublado que nega a vista do horizonte.
The day became so cloudy that it obscures the view of the horizon.
In this context, 'nega' indicates that the person refuses to accept help.