speak on

speak (up)on something

to talk about a particular topic. (Upon is formal and less commonly used than on.) This evening, I will speak upon the subject of Plato's thoughts on the universe. What will you speak on today?

Common Names:

Name	Pronounced	Usage
Wioletta	vyaw-LET-tah	Polish
Aleksei	ah-lyek-SYAY (Russian), ah-leek-SYAY (Russian)	Russian, Ukrainian, Belarusian
Dickson	['diksn]
Sezim	-	Kazakh
Gotthilf	GAWT-hilf	German
Pamella	PAM-ə-lə	English