Meaning
Validity is a noun that refers to the quality of being well-founded, legally acceptable, logically sound, or effective. It describes whether something (like an argument, law, contract, or test) is correct, reasonable, or officially recognized.
Grammar and Usage
-
Part of speech: Noun
-
Countable/Uncountable: Usually uncountable (e.g., "the validity of the contract")
-
Typical structures:
- the validity of + noun
- question/doubt/challenge the validity
Common Phrases
- the validity of an argument – whether the reasoning is logically correct
- the validity of a claim – whether a statement is true or supported by evidence
- the validity of a law/contract – whether it is legally acceptable
- question the validity – to doubt if something is valid
- establish the validity – to prove something is correct
Collocations
- legal validity
- scientific validity
- validity period
- question the validity
- doubt the validity
- challenge the validity
- recognize the validity
Examples
- The court questioned the validity of the witness’s testimony.
- Scientists examined the validity of the experiment’s results.
- The validity of the contract was confirmed by both parties.
- He doubted the validity of her claim.
- The study raised concerns about the validity of the data collected.
- Please check the validity period of your passport before booking a flight.
- The professor explained the validity of the logical argument.
- Lawyers argued about the validity of the new regulation.
Synonyms or Related
- legitimacy
- soundness
- credibility
- truth
- reliability
Antonym
- invalidity
- falseness
- illegitimacy