喜笑顏開

grinning from ear to ear (idiom) / beaming with happiness

to be fond of / to like / to enjoy / to be happy / to feel pleased / happiness / delight / glad

to laugh / laughter

old variant of 笑[xiao4]

laugh / smile / CL:個|个[ge4]

to laugh; to smile / to laugh at

surname Yan

color / face / countenance

to open / to start / to turn on / to boil / to write out (a prescription, check, invoice etc) / to operate (a vehicle) / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2] / abbr. for 開本|开本[kai1 ben3], book format