Definition of involves:
(v) :
To cause or engage (someone or something) to become connected or implicated, or to participate, in some activity or situation.
(v) :
To have (something) as a component or a related part; to comprise, to include.
(v) :
(specifically) To include (something) as a logical or natural, or necessary component, or consequence or effect of something else; to entail, to imply.
(v) :
(figuratively) To entangle, intertwine, or mingle (something with one or more other things, or several things together); especially, to entangle (someone or something) in a confusing or troublesome situation.
(v) :
(specifically, also reflexive, chiefly passive voice) Chiefly followed by with: to engage (someone or oneself) in an emotional or sexual relationship.
(v) :
(archaic) To cover or envelop (something) completely; to hide, to surround.