Although the arguments were rational, he was not convinced.

What she means is reasonable in a certain sense.

His words sound reasonable.

It stands to reason that he should apologize to her.

What he said in his interview makes sense.

Give the devil his due.

From an objective viewpoint, his argument was far from rational.

Nothing could be more reasonable, on the face of it.

We all agreed that the plan made sense.

We understand our own movements extremely well, and we can use them for reference.

What Tom is saying is certainly reasonable.

I think it makes sense.

What Tom said made sense.