1. Third person singular present indicative of 'persistir' - to continue firmly or obstinately in a course of action despite difficulty or opposition
He persists in his efforts to learn the language.
Ele persiste em seus esforços para aprender a língua.
2. To remain or continue to exist, especially despite obstacles
The problem persists despite our attempts to solve it.
O problema persiste apesar de nossas tentativas de resolvê-lo.
3. To be insistent or persistent about something
She persists with her questions until she gets answers.
Ela persiste com suas perguntas até obter respostas.