It is the opportunity, adequacy and convenience of a thing. It is something that comes on purpose, that is relevant, appropriate or congruent with what is expected.
To consider that an opinion has relevance is to recognize that it has validity, since it has some suitable characteristic. Therefore, something can be relevant because it fits well with a situation and, at the same time, it does not have the support of other people. Suppose a person is in a neighborhood meeting to propose ideas to improve the cleanliness of the community. This individual proposes a new cleaning schedule.
It is important to bear in mind that there are types of relevance that vary according to the established link and the scope in which they are developed, such as school membership, work membership, citizenship, national membership, territorial membership, political affiliation, etc.
Now, on the other hand, we find the educational property that is nothing more than the adequacy and convenience of the educational contents that the State defines to be taught to the student population of a country through educational institutions. In this way, it refers to the criterion according to which the school curriculum is structured and adapted to social needs, as well as to the recommended methodological techniques and strategies for the effective transmission of knowledge in the classroom.
Pertinence and impertinence would be synonymous with valid and invalid, respectively. We need to understand each other in our communication and it is necessary to establish certain rules for the understanding to be effective. In some social contexts (meetings, trials, debates) it is necessary to establish a procedure of action. It is a way to avoid disorder in participation. In these contexts, there are generally responsible people who oversee compliance with the rules. They are the ones who determine what is relevant and what is not. They act as arbitrators so that the corresponding regulation is respected in the development of an act.
To affirm that an action has relevance is to accept it, initially, as appropriate and correct. The idea of relevance implies adequacy to the facts. There is a connection between the particular and the general.
If someone says something inappropriate, it can be considered impertinent. Impertinence is a provocation, an uneducated and disrespectful behavior.