I am new to chess and was wondering what exactly do people mean when they say "study".
They mean to do something that actively engages your brain. It does most people little good to listen to hour after hour of videos if their brains are not actively engaged in assessing the knowledge provided by the instructor.
Private tutors are good because they can question the students periodically to see if any of the material is sinking in.
However, most people can't afford a private tutor to teach us the basics of the game. We have to learn from the lessons set out in books, articles, videos and other courses by strong players.
Traditionally, those were in books and articles. More recently, interactive lessons have become available on the computer. Some of the good ones are interactive.
I am new to chess and was wondering what exactly do people mean when they say "study".