(chemistry) phenyl-2-propanone (phenylacetone)

(networking) Initialism of peer-to-peer. / (online gaming) Initialism of pay-to-play. / Initialism of pulled-to-publish. / (politics) Initialism of people-to-people (relations).

Initialism of power to gas. (a method of storing generated power, usually by electrolyzing water into hydrogen and oxygen, and carbonizing the hydrogen into methane)

(video games) Initialism of pay to win.

(online gaming) Initialism of play-to-earn.