Definitions
/spiːk ʌp/
Oxford: speak more loudly
Cambridge: to speak in a louder voice so that people can hear you
Translations
Polish: mówić głośniej
Spanish: hablar más fuerte
German: lauter sprechen
Russian: выска́зываться
Examples
Could you speak up? We can’t hear at the back.
‘Speak up? What a notion, coming as I did from the land of “Sit down, Francine” and “Be quiet, Francine”.’
Exercises
1. In what situation were you asked to speak up?