Meaning of nostalgia in English
nostalgia
noun [ U ]
UKvolume_up
/nɒsˈtæl.dʒə/
USvolume_up
/nɑːˈstæl.dʒə/
C2

a feeling of pleasure and also slight sadness when you think about things that happened in the past:

Some people feel nostalgia for their schooldays.

Hearing that song again filled him with nostalgia.

a wave (= sudden strong feeling) of nostalgia

nostalgia
noun [ U ]
USvolume_up
/nɑˈstæl·dʒə, nə-/

a feeling of pleasure and sometimes slight sadness at the same time as you think about things that happened in the past:

Hearing her voice again filled him with nostalgia.