Which term refers to something that is both fitting and relevant?

The term that refers to something that is both fitting and relevant is "germane." This word is often used in contexts where the relevance of information or an idea is being assessed in relation to a particular topic or situation. When something is germane, it means that it is not only appropriate but also directly related to the matter at hand, contributing to the understanding or discussion of that subject.

The other terms do not capture the same specific meaning. "Irrelevant" describes information that does not pertain to the subject or is not useful in context, which is the opposite of what is asked in the question. "Applicable" implies something that can be applied or is suitable in a certain situation but does not inherently carry the connotation of being fitting or relevant in the same nuanced way. "Coherent" refers to clarity and logical consistency in ideas or arguments, rather than specifically addressing relevance or appropriateness. Thus, "germane" is the most accurate term that encapsulates both fittingness and relevance.