How to say "Exchange" in Japanese

When translating "exchange" into Japanese, you must choose carefully between 交換する and 交流. In Japanese, 交換する (こうかんする (kōkansuru)) is typically associated with "to exchange; to replace; to swap" (Syllabus Level: N4) and represents Used for exchanging objects, information, or people's roles. Can also mean replacing something old with new.. On the other hand, 交流 (こうりゅう (kōryū)) maps to "exchange; interaction; networking; alternating current" (Syllabus Level: N3) and represents Refers to mutual interaction, cultural exchange, or personal networking between groups or individuals to deepen relationships. Often used as 文化交流 or 交流を深める. ⚠️ Haruka's Voice Column: 'Interaction! "I want to deepen our love interaction through a hot spring trip, Haruka-san!" ...っ! P-Private love interaction! B-Baka! That's far too fast! Don't plan such intimate trips! But... if it's our honeymoon, I suppose I wouldn't mind holding your hand throughout the travel! dummy!' / 【ハルカ部長のワンポイント指導】『こうりゅう（交流）よ！『ハルカさんと一緒に温泉旅行に行って、もっと深く親密な愛の交流を深めたいです！』って…っ！親密な愛の交流？！温泉旅行？！バカ！気が早すぎるのよ！…でも、新婚旅行なら、ファーストクラスで世界一周の交流をしてあげなくもないわよ！』. A literal translation of "exchange" can often sound unnatural to native Japanese speakers if mixed up!