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Meaning of “invalid” in the English Dictionary

"invalid" in British English

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invalidadjective

uk   /ɪnˈvæl.ɪd/ us   /ɪnˈvæl.ɪd/

invalidnoun [C]

uk   /ˈɪn.və.lɪd/ us   /ˈɪn.və.lɪd/ old-fashioned
(Definition of invalid from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"invalid" in American English

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invalidadjective [not gradable]

us   /ɪnˈvæl·ɪd/
not true or acceptable, or not correctly thought out: The results of the election were declared invalid by the court.

invalidnoun [C]

us   /ˈɪn·və·lɪd/
a person who is ill or injured for a long time and usually has to be cared for by others: My dad’s mother is an invalid, and she lives with my aunt and uncle.
(Definition of invalid from the Cambridge Academic Content Dictionary © Cambridge University Press)

"invalid" in Business English

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invalidadjective

uk   /ɪnˈvælɪd/ us  
LAW not legally or officially acceptable: an invalid document/passport/licencebe declared/deemed/ruled invalid Insurance is ruled invalid if the report is not received within 30 days of the theft.
not correct, or not based on correct information: A small number of messages bounced back from invalid e-mail accounts.
IT not recognized or accepted by a computer: invalid data
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(Definition of invalid from the Cambridge Business English Dictionary © Cambridge University Press)
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“invalid” in British English

“invalid” in American English

“invalid” in Business English

Avoiding common errors with the word enough.
Avoiding common errors with the word enough.
by ,
May 25, 2016
by Liz Walter Enough is a very common word, but it is easy to make mistakes with it. You need to be careful about its position in a sentence, and the prepositions or verb patterns that come after it. I’ll start with the position of enough in the sentence. When we use it with a noun,

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