(verb) 1. Revert back; for HongKongese, the word "回歸" always refers to Hong Kong回歸 reverts back to China in July 1., 1997.
Definitions (粵典–words.hk)
動詞
返去原本嘅狀態 to return; to restore to a former state
回歸自由
回归自由
wui4 gwai1 zi6 jau4 to return to freedom
回歸自然
回归自然
wui4 gwai1 zi6 jin4 to return to the nature
動詞
特指香港主權喺1997年移交中國一事(九七),或者澳門主權喺1999年移交中國一事 specifically, the "return" of Hong Kong to China in 1997 or that of Macau to China in 1999; the handover
回歸之後香港嘅生活越嚟越差。
回归之后香港嘅生活越嚟越差。
wui4 gwai1 zi1 hau6 hoeng1 gong2 ge3 sang1 wut6 jyut6 lai4 jyut6 caa1. After the handover, the living standard in Hong Kong is getting worse.
Definitions (Wiktionary)
verb
to return (to the original place, organisation, etc.); to retreat
香港回歸
香港回归
xiāng gǎng huí guī return of Hong Kong to China