恋愛れんあい Common Noun Irregular Intransitive Noun English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verbnouns which may take the genitive case particle 'no' love;romance;tender passion;emotion;affections 時は友情を深めるが、恋愛を弱める。 Time, which strengthens friendship, weakens love.