Cambridge English: CPE (C2 Proficiency) - Idoneidad y adecuación

having the quality of being appropriate or closely connected to the subject or situation at hand

relevant, suitable, or appropriate in a given context or situation

suitable in comparison to something else, like quality, extent, size, etc.

appropriate and fitting, especially in reference to punishment or reward that matches the severity or merit of the action

the state of being in agreement or harmony

(in geometry) describing shapes of the same size and form

generally accepted rules or principles, especially those that are considered as fundamental in a field of art or philosophy

fitting for the occasion, accurately expressing what is intended

accuracy with which a copy or reproduction matches the original

lack of harmony, consistency, or compatibility between two or more elements

highly appropriate to a particular matter or situation

a standard model which one uses as a reference when judging something

helpful in a way that serves one's personal interests

having the quality of being closely connected to the subject at hand in a way that is appropriate

peculiar and not like what is considered suitable or appropriate for a situation

equivalent in effect, value, or meaning

to be beneficial to act in a certain way

a very typical example or model of something that sets a standard or pattern