Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun cogency

2 senses of cogency

Sense 1
cogency -- (persuasive relevance)
       => relevance, relevancy -- (the relation of something to the matter at hand)

Sense 2
cogency, validity, rigor, rigour -- (the quality of being valid and rigorous)
       => credibility, credibleness, believability -- (the quality of being believable or trustworthy)