Click-through rate (CTR) is a metric that measures the number of clicks an ad or a link receives relative to the number of impressions, or views, it generates.

Bounce rate is a web analytics metric that measures the percentage of website visitors who leave a website after viewing only one page, without interacting with any other pages on the site.

Brick and mortar refers to a physical retail store or business location, as opposed to an online or virtual presence.