Wiktionary
n. A monetary gift which is given during holidays or special occasions, such as the Chinese New Year.
Wikipedia
In Chinese and other East Asian societies, a red envelope, red packet, lai see ( Cantonese), ang pao ( Hokkien) or hong bao ( Mandarin) is a monetary gift which is given during holidays or special occasions such as weddings, graduation or the birth of a baby. Outside of China, similar customs exist across parts of South East Asia and many other countries with a sizable ethnic Chinese population.
Usage examples of "red envelope".
He had a letter in there, in a bright red envelope, one he'd mailed three days earlier from Cincinnati, then raced south.
The symbolic gesture-such a red envelope was traditionally given to a defeated business rival along with a token sum of money in order for him to keep some semblance of face-had not been lost on the Australian.
He slipped out a bright red envelope, holding it up to the cameras.
The owl dropped the red envelope on her head, turned, and flew straight back up the chimney.
Nangi, his hand in his breast pocket, touched the glossy surface of the red envelope Liu had given him, thus causing him to lose enormous face.
The red envelope, which had dropped from Ron's hand, burst into flames and curled into ashes.