to offer birthday congratulations (to an elderly person)
Definitions (粵典–words.hk)
動詞
為長輩或者老年人嘅生日送上祝福 to congratulate the elderly or seniors on their birthday
今日婆婆八十大壽,我要去佢屋企同佢祝壽。
今日婆婆八十大寿,我要去佢屋企同佢祝寿。
gam1 jat6 po4 po2 baat3 sap6 daai6 sau6, ngo5 jiu3 heoi3 keoi5 uk1 kei2 tung4 keoi5 zuk1 sau6. Today is the 80th birthday of my grandmother. I need to visit and celebrate with her.
Definitions (Wiktionary)
verb
to express birthday good wishes (usually to an elderly person); to congratulate a person (usually an elderly person) on his or her birthday (syn.) 拜壽, 拜寿