speak about

speak about (someone or something)

To converse, talk, or lecture about someone or something. The professor will be speaking about research methodology in his next seminar. He could hear his parents speaking about him in the other room. I've spoken about this topic multiple times already.See also: speak

speak about someone or something

to mention or discuss someone or something. And now I will speak about Abraham Lincoln. Let us speak about what happened yesterday.See also: speak