speak up
US /spiːk ˈʌp/
UK /spiːk ˈʌp/
1.
to speak more loudly
:
•
Could you please speak up? I can't hear you.
•
The teacher asked the students to speak up so everyone could hear.
2.
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.
•
She decided to speak up about the injustice she witnessed.