Definition of "nostalgia" in English

noun

1. (now uncommon) A longing for home or familiar surroundings; homesickness.

   • Seeing food at camp similar to his mother's cooking sent a wave of nostalgia through him.

2. (transferred sense) A bittersweet yearning for the things of the past.

   • an alumnus' feelings of nostalgia for his/her years in high school