The definition of a paywall is a pop up that appears on an online site when you must pay to continue.
An example of a paywall is the window that comes up on latimes.com after you view your maximum number of free online articles.
a system designed to prevent visitors to a website, often, specif., to a news website, from viewing certain content without first paying a subscription fee
Origin of paywallpay + (fire)wall
A feature of a website that denies access to certain content to users who have not paid to view it.
Origin of paywallpay 1 (fire)wall