"Invalid" is an English word that has multiple meanings in different contexts. As an adjective, it means "invalid" or "useless" and is often used to describe documents, evidence, etc. As a noun, it has two meanings: one is "patient", especially a person who has been ill or disabled for a long time; the other is "disabled person" or "disabled person", emphasizing physical defects or dysfunction. In addition, "invalid" can also be used as a verb to mean "to disable" or "to decommission."
invalid is an English word, its meaning and usage are as follows:
- When used as an adjective, invalid means "invalid" or "useless". It is usually used to describe things, documents, evidence, etc., indicating that these things have no validity or value. For example, in the legal or technical fields, an invalid contract or document may be invalid because some clauses violate legal requirements or are incorrectly formatted.
- When used as a noun, invalid has two main meanings. First, it can mean "sick", especially those who are chronically ill or disabled. This usage usually has a certain tone of sympathy and care. Secondly, invalid can also refer to "disabled person" or "disabled person", emphasizing physical defects or dysfunction.
In addition, invalid as a verb can mean "to disable" or "to retire", but this is not its most common use.
In short, invalid is a polysemous word, and its specific meaning depends on its position and context in the sentence. For more information, it is recommended to consult an authoritative English dictionary or corpus.
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