Academic / B2

VAL-id/ˈvælɪd/

Valid means logically sound, or legally and officially acceptable: a valid argument / reason / ticket / passport. True is about facts; valid is about reasoning or official status — a ticket can be invalid even if it is real. Validity is the noun (research validity) and validate the verb; sound is a close synonym for arguments.

Meaning

Based on truth or reason, or legally acceptable.

Examples

• “That is a valid argument.”
• “Your passport must be valid for six months after you arrive.”
• “That is a valid criticism of the first draft.”

Good to know

valid ticket / argument. true = fact; valid = sound or officially acceptable. Noun: validity.

Near in meaning

sound

Topics

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