Celebrate Valentine's Day with this acrostic poem activity. Think of a word or phrase that starts with each letter of the word valentine.. Download.
The state of being valid, authentic or genuine. validity(Noun) Having legal force. validity(Noun) A quality of a measurement indicating the degree to which the measure reflects the underlying construct, that is, whether it measures what it purports to measure (see reliability).
From Wikipedia, the free encyclopedia. A validator is a computer program used to check the validity or syntactical correctness of a fragment of code or document. The term is commonly used in the context of validating HTML, CSS and XML documents or RSS feeds though it can be used for any defined format or language.