yǒng​jiǔ HSK7

forever

永久 yǒng​jiǔ
forever adverb
continuing for all future time; eternally

No one can live forever.

permanent adjective
lasting or intended to last or remain unchanged indefinitely

He finally obtained permanent residency.

Frequency

Movie subtitles
8.56 per million appears in 4% of films
Written text
9.99 per million

Details

HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT