"pv" is an abbreviation for the Japanese term "パワフルなビジュアル (Pawafurna Bijuaru)," which translates to "Powerful Visual." This tag refers to a porn video with intense or vivid visuals, often involving high-quality imagery and detailed scenes. These videos usually have a focus on aesthetics, composition, and overall visual impact. They can be found in various genres like hentai, Japanese live-action, and even some non-Japanese productions influenced by the Japanese aesthetic. The "pv" tag is particularly associated with Japanese adult content but can also be used more generally to describe any video with strong visual elements.