Having sufficient strength or force; founded in truth; capable of being justified, defended, or supported; not weak or defective; sound; good; efficacious; as, a valid argument; a valid objection.
Having legal strength or force; executed with the proper formalities; incapable of being rightfully overthrown or set aside; as, a valid deed; a valid covenant; a valid instrument of any kind; a valid claim or title; a valid marriage.
Let me explain something about guitar playing. Everyone's got their own character, and that's the thing that's amazed me about guitar playing since the day I first picked it up. Everyone's approach to what can come out of six strings is different from another person, but it's all valid. Jimmy Page
If merely 'feeling good' could decide, drunkenness would be the supremely valid human experience. William James
You can get along very well in this world by simply coming up with a quantity of reasonably valid statements. B. F. Skinner
It is nice to have valid competition; it pushes you to do better. Gianni Versace
No work or love will flourish out of guilt, fear, or hollowness of heart, just as no valid plans for the future can be made by those who have no capacity for living now. Alan Watts
valid in Danish is gyldig
valid in Dutch is gangbaar, geldig, geldend, vigerend
valid in French is valable
valid in Hungarian is indokolt, megalapozott
valid in Italian is valevole
valid in Norwegian is gyldig