天亮

tiānliàng
to grow light (at daybreak)

CEDICT

to break (of dawn)

Wiktionary

  1. 破晓、天明。
  2. 比喻心中澄明，如天空般明亮。

重編國語辭典

太阳将露出地平线所发出的光明

維基詞典

Entry Composition

1 天 tiān
  1. day
  2. sky
  3. heaven
2 亮 liàng
  1. bright; light
  2. to shine; to flash
  3. loud and clear
  4. to show (one's passport etc); to make public (one's views etc)