通紅

very red / red through and through / to blush (deep red)

to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

surname Hong

red / popular / revolutionary / bonus

Unicom Red Chip, Hong Kong subsidiary of China Unicom 中國聯通|中国联通[Zhong1 guo2 Lian2 tong1]