This is the 11112th most frequent Portuguese word.
lido
"Lido" means "read" in English, as the past participle of the verb "ler" (to read) in Portuguese.
In this sentence, 'lido' is the past participle of the verb 'ler' (to read), used in the compound past tense to indicate a completed action.
Eu já tinha lido aquele livro antes de assistir ao filme.
I had already read that book before watching the movie.
Here, 'lida' is the feminine past participle of 'ler' (to read), used in a passive construction describing the action performed on the essay.
A redação foi muito bem lida pelo professor.
The essay was very well read by the teacher.
In this example, 'lido' is used as the masculine past participle of 'ler', conveying the completion of the reading action in a general statement.