speak up
US /spiːk ˈʌp/
UK /spiːk ˈʌp/

1.
falar mais alto, elevar a voz
to speak more loudly
:
•
Could you please speak up? I can't hear you.
Você poderia falar mais alto, por favor? Não consigo te ouvir.
•
The teacher asked the students to speak up so everyone could hear.
O professor pediu aos alunos para falarem mais alto para que todos pudessem ouvir.
2.
se manifestar, defender
to express one's opinion or concerns, especially when it is difficult or risky
:
•
It's important to speak up for what you believe in.
É importante defender o que você acredita.
•
She decided to speak up about the injustice she witnessed.
Ela decidiu se manifestar sobre a injustiça que testemunhou.