This is the 6056th most frequent Portuguese word.
canta
"Sing."
In this sentence, 'canta' is used as the third-person singular present tense form of the verb 'cantar,' meaning 'to sing.' The subject 'Ele' indicates the person performing the action.
Ele canta com alegria.
He sings with joy.
Here, 'canta' is the third-person singular present tense of 'cantar' again, used to describe the action of singing a song, with 'Todo mundo' as the subject.
Todo mundo canta essa música popular.
Everyone sings this popular song.
In this example, 'canta' is part of indirect reported speech, still in the present tense conveying an habitual action performed by the subject 'ele' as narrated by 'ela'.