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valeric acid
valet
valet de chambre
valet parking
valeta
valetudinarian
Valhalla
valiant
valid
validate
validated export license
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valid

val·id [ vállid ]


adjective 
Definition:
 
1. unexpired: usable or acceptable until a fixed expiration date or under specific conditions of use
a valid passport

2. justifiable: reasonable or justifiable in the circumstances
That's a valid question.

3. effective: bringing about the results or ends intended
regards the test as a valid measure of student performance

4. law legally binding: having binding force in law

5. logic logical: having premises from which the conclusion follows logically
It's a perfectly valid argument.

[Late 16th century. Directly or via French< Latin validus "strong" < valere "be strong"]

va·lid·i·ty [ və líddətee ] noun
val·id·ly [ vállidlee ] adverb

Word Key: Synonyms
valid, cogent, convincing, reasonable, sound
CORE MEANING: worthy of acceptance or credence

valid reasonable or justifiable in the circumstances;
Mrs. Smith raises a valid point in her letter.
We are required to notify all other parties unless there is a valid reason why such notice should not be given.
cogent forceful and convincing to the intellect and reason;
a cogent analysis of the situation
Their rationale is neither logical nor cogent.
convincing likely to overcome doubts and win the support of those who hear it;
Your explanation is not wholly convincing.
He needs to see convincing evidence before he can accept this theory.
reasonable acceptable and according to common sense;
must show reasonable grounds for his actions
It seemed like a reasonable assumption at the time.
sound based on good sense and acceptable reasoning and worthy of approval;
Her portfolio is diversified in accordance with sound investment policy.
offers some sound advice on road safety
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