Individual can be an adjective or a noun.

As an adjective, a living thing that is individual is not in a group (by him/her/itself). An object that is individual is for only one person or thing (not shared by a group). Something that is individual can also be different from anyone else (unique).

• Some students learn better with tutors because they get individual attention.
• He has a very individual taste in music.

As a noun, an individual is only one person or thing, not a group. An individual can also mean someone who is different from anyone else (one a kind).

• The rights of individuals
• A strange individual