The activity of playing video or computer games(noun)
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Use "videogaming" in a sentence
"MTV has also become a major player in videogaming, which is now the hottest category in all entertainment."
"Personal-computer sales are growing at double-digit rates annually, and online services such as videogaming are booming."
"Strange you included a screenshot from “BioShock,” a game many have called videogaming’s first release equivalent to “Citizen Kane,” without even mentioning it!"