valid

This is a valid will.

be valid for two weeks

valid for three months

Is this contract valid?

The coupon is not valid if detached.

a logically valid deduction

a seemingly valid but indemonstrable hypothesis.

This guarantee is valid for one year.

a sound observation.See Synonyms at valid

a cogent argument.See Synonyms at valid

a convincing story.See Synonyms at valid

the visas are valid for thirty days.

I think that is very, very valid.

All the reasons it was popular in the past are just as valid today.

Are the inferences valid? Does the conclusion follow the premises?

So are travelers who already have valid visas.

I think you both make valid points.

'Cause yes, that is a valid tactic.

This is a hop-on hop-off service and tickets are valid for 24hours.

That is actually a valid question, but no.

However, maybe the Amish have a valid point.

Yeah... That is a very, very valid point.