Being totally accurate (used as a phrase to specify)
"strictly speaking" is correct and usable in written English. It is typically used to emphasize a point, and to make clear that what is being said is an absolute, literal interpretation of the given facts. For example, "Strictly speaking, the new law applies only to those 18 and over.".
Strictly speaking, yes.
Strictly speaking, they do.
Strictly speaking, no.
Strictly speaking, that's true.
And, strictly speaking, that's true.
Strictly speaking, this isn't true.
Well, strictly speaking, not everyone.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia