Id (Noun)

A card or badge used to identify the bearer; "you had to show your ID in order to get in".

Nouns denoting communicative processes and contents.

The bouncer asked for her ID before letting her into the club.
He forgot his ID at home and was unable to get into the office building.
The hotel receptionist requested my ID when I checked in for my room.
You need to show your ID and proof of address to apply for a library card.
The airport security guard scrutinized her ID before allowing her to board the plane.

(psychoanalysis) primitive instincts and energies underlying all psychic activity.

Nouns denoting cognitive processes and contents.

The ego emerges from the id during childhood, gradually becoming more dominant as the child interacts with the world.
In psychoanalytic theory, the id is thought to contain the raw, unorganized energy of the human psyche.
The id is said to be responsible for primitive instincts such as hunger, thirst, and sex drive.
Freud believed that the id was the source of both creative energy and destructive impulses in the human psyche.
According to Freudian psychoanalysis, the id operates on the pleasure principle, constantly seeking to fulfill its instinctual desires without concern for the consequences.

A state in the Rocky Mountains.

Nouns denoting spatial position.

The ID is a beautiful state with mountains and rivers that attract many tourists.
We're driving through ID on our way to Yellowstone National Park.
The scenic byways in ID offer stunning views of the surrounding landscape.
ID is home to many hot springs, a popular destination for relaxation.
In the winter, ID is a great place to go skiing and snowboarding.