“Just what does this job 'involve'?” “It 'involves' [='entails'] traveling and a lot of overtime.”
No one knew of their romantic 'involvement'. [=no one knew that they had a romantic relationship]
The accident 'involved' three cars. = Three cars were 'involved' in the accident.
(..) and buy your own? Actually, I'm conducting an experiment. Well, since when do you do experiments, especially ones that involve lamb shanks, a cow heart, and four bags of pig intestines? I'm trying to determine when Emil Bradford's body was dumped. (..)2016 TvShow: Bones Title: The Murder of the Meninist Season: 11 Episode 12