天文 (tiān wén) means “astronomy”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
他从小就对天文感兴趣。
Tā cóng xiǎo jiù duì tiānwén gǎn xìngqù.
He has been interested in astronomy since childhood.
Updated: 2026-05-27