The word individual is all about being a single entity that cannot be divided. It can mean person or even personal. An army is made up of individual soldiers, each individual there for his own individual reasons, but serving a common goal.
Sometimes individual is a way of referring to a person, quasi-formally. You might elevate the phrase "This guy walks into my shop," by saying, "This individual walks into my shop." You might also hear this word when talking about things that are divided: foods designed for lunchboxes, such as potato chips or juice boxes, are often prepackaged into individual servings.
adj being or characteristic of a single thing or person
peculiar to the individual
marked by or expressing individuality
being a system of play in which an individual defensive player guards an individual offensive player
respective, several, various
being a single and separate person or thing
independent; not united or joint