This is the 1869th most frequent Portuguese word.
saiba
"Saiba" is the subjunctive form of the verb "saber," meaning "know" or "may know."
In this sentence, 'saiba' serves as a command or exhortation, in the present subjunctive mood, telling someone to 'know' a particular fact.
Saiba que estarei sempre do seu lado.
Know that I will always be by your side.
Here, 'saiba' also functions as a directive in the present subjunctive mood, urging the subject to be aware or informed about the truth.
Não importa o que aconteça, saiba a verdade.
No matter what happens, know the truth.
In this context, 'saiba' implies a necessity or advice for the subject to acquire knowledge or skill, expressed in a subjunctive form.