validity

As nouns the difference between validity and appropriateness

is that validity is the state of being valid, authentic or genuine while appropriateness is the quality or condition of being appropriate.

Creidibility is likely misspelled.

Creidibility has no English definition.

As a noun validity is

the state of being valid, authentic or genuine.

As nouns the difference between expiry and validity

is that expiry is end, termination, expiration while validity is the state of being valid, authentic or genuine.

As nouns the difference between validity and reasonability

is that validity is the state of being valid, authentic or genuine while reasonability is the state or quality of being reasonable; reasonableness.

As nouns the difference between validity and stringency

is that validity is the state of being valid, authentic or genuine while stringency is a rigorous imposition of standards.

As nouns the difference between validity and function

is that validity is the state of being valid, authentic or genuine while function is what something does or is used for.

As a verb function is

to have a function.

Relibility is likely misspelled.

Relibility has no English definition.

As a noun validity

is the state of being valid, authentic or genuine.

As a verb validify

is to validate.

As a noun validity is

the state of being valid, authentic or genuine.

As nouns the difference between validity and calidity

is that validity is the state of being valid, authentic or genuine while calidity is (obsolete) heat.

As nouns the difference between vapidity and validity

is that vapidity is the state or quality of being vapid; vapidness while validity is the state of being valid, authentic or genuine.