Porno film and Porn

Porn and porno film are semantically related in pornography topic. In some cases you can use "Porn" instead a noun phrase "Porno film", when it comes to topics like obscenity, dirty movie.

Porn noun - Creative activity (writing or pictures or films etc.) of no literary or artistic value other than to stimulate sexual desire.

Porno film and porn are semantically related in pornography topic. Sometimes you can use "Porno film" instead a noun "Porn", if it concerns topics such as obscenity, dirty movie.