Idioms with SPEAK

speak volumes
to tell you a lot about something/someone in an indirect way
What you wear speaks volumes about you.

speak your mind
to say what you think about something very directly
She is certainly not afraid to speak her mind.

speak for itself
need no further explanation because it is easy to see or understand
His success speaks for itself.

strictly speaking
used to show that you are trying to be accurate
Strictly speaking, spiders are not insects.

speak of the devil
used when a person appears just after being mentioned
“I haven’t seen Tim for a while.” “Well, speak of the devil, here he is!”