require as useful, just, or proper
"It takes nerve to do what she did"
"success usually requires hard work"
"This job asks a lot of patience and skill"
"This position demands a lot of personal sacrifice"
"This dinner calls for a spectacular dessert"
"This intervention does not postulate a patient's consent"
occupy or engage the interest of
"His story completely involved me during the entire afternoon"
To roll or fold up; to wind round; to entwine.
"The old sailor carefully involved his rope around the wooden mast before securing it for the night."
In plain English: To involve means to include someone or something as part of an activity or situation.
"The project will involve working long hours every day."
Usage: In everyday usage, involve means to include someone or something in an activity or situation. Do not use this word when you mean to physically wrap or coil an object, as that requires the specific definition of rolling or folding.
The word "involve" entered English in the late Middle Ages from Old French and Latin, originally describing the act of rolling something around or wrapping it up. Over time, this physical sense shifted to mean being concerned with a subject or having an effect on someone else.