Shi Yan is a common word in spoken Cantonese. Pronunciation is eating sek6 Yan ngan3. It means having lunch. This word is different from eating in Mandarin. This word limits time and can only be used for lunch.

The book Lin Qiong-Astronomy for Young Students says that "it is a cloud when it is late in the morning" and a "wild field" when it is late in the morning. When it comes to days, old Guangzhou people will say "up and down". By extension, the word "Yan" always replaces the word "rice". Restaurant = Yandian, which is a low-end restaurant, is almost what everyone generally calls a food stall.