怀旧 (huái jiù): Feel nostalgic / Yearn for the past (Verb) — Meaning & Stroke Order

Seeing these old photos, I couldn't help but start to feel nostalgic.

He has been feeling nostalgic lately, repeatedly looking through those yellowed old photos.

Listening to old songs makes me feel nostalgic, as if I've returned to the good old days.

I am not blindly nostalgic; I just occasionally miss that pure friendship.