The first step that is necessary to take to fully understand the term is to proceed to determine its etymological origin. In this sense, we would have to say that it is a word that emanates from Latin and is made up of three particles: the verb prevail, which can be translated as "having vigor"; the particle -nt-, which is equivalent to “agent”; and finally the suffix -ia, which means "quality".
Validity is the current quality (something that is in force). The term allows you to name what is current or that has a good present, that is, that still fulfills its functions beyond the passage of weather .
The validity may refer to people , objects or symbolic issues. In the case of human beings, validity is usually linked to those who remain at the first level of a professional, sporting, artistic activity, etc. although his age should reflect an eventual decline in his abilities. For example: “The validity of Martín Palermo is unquestionable, that is why at 37 years of age he is still the owner of one of the most important clubs in Argentina”, "Manu Ginobili ratified its validity just before renewing its contract with San Antonio Spurs", “The artist demonstrated its validity with a new album that has seduced all generations”.
As for objects, validity usually refers to their expiration or Loss of value : "The compact discs have lost their validity before the advance of digital music and MP3 format", “The validity of the television as a center of family entertainment is in doubt, as people spend more and more time surfing the Internet”.
Thus, for example, based on this meaning we would have to underline that there are many official and legal documents that are valid or not based on their validity. In this way, we find the fact that when we are going to make a trip outside our country it is vital that our national identity document or our passport is fully valid. In the event that it is expired, they will not allow us to board the plane.
In the case of Spain, it is established by law, that the passport for a person under 30 years of age will remain valid for a period of five years, while it will be ten for those over that age.
In the case of those under 30, said validity will be different. Thus, for children under 5 years of age that will be 24 months and for those up to 14 years of five years.
The validity, finally, can also be something that old-fashioned : “Leather pants and flowered shirts have not been valid for more than a decade”, "Velvet dresses never lose their validity and continue to show off in different types of events".
In this world of design, the terms validity and trend are closely related. Thus, this last concept is used to define those fashions that at that time are more carried.
