Rigour
Part of speech: noun
Definition: a harsh or severe experience. a trembling or shivering response. character of being unyielding or inflexible. shrewd questioning higher level of difficulty . An abbreviated form of rigour mortis.
Validity
Part of speech: noun
Definition: The state of being valid, authentic or genuine.Having legal force.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).
Example sentence: Know that any and all thoughts that you have regarding your own skills, interests, and inclinations are valid. To reinforce the validity of your thoughts, keep them private. Tell yourself that they're between you and God.