"Love and a cough cannot be hidden" is a proverb that highlights the difficulty of concealing strong emotions. The word love itself has a plethora of synonyms such as passion, affection, adoration, fondness, devotion, and attachment. These words all connote warm, positive feelings towards someone or something. However, just like love, a cough cannot be hidden, and synonyms for this word include a hack, hackle, throat-clearing, and wheeze. The proverb suggests that just as a cough is instinctively expressed, so too is one's affection and love for another. Ultimately, this expression serves as a reminder to always value and cherish the meaningful relationships in one's life.