A feature of a website, application or service that only allows access to certain pages, data or features to paid up subscribers.(noun)
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Use "paywall" in a sentence
"A paywall is fine, if he thinks that will work for his [...] [Read more →]"
"Hidden behind the WSJ's stupid paywall is this wonderful piece by Ian Mount about rare, "lost" art-films resurfacing at online video sites like Google and YouTube -- and some ensuing copyright squabbles:"
"No, people are using the word paywall inappropriately."