eighteen in a sentence

Definition

Eighteen is the cardinal number following seventeen, representing the age of 18 years, often associated with the transition to adulthood.

She celebrated her eighteenth birthday with a big party.
At eighteen, he felt ready to take on the challenges of adulthood.
The novel's protagonist embarks on an adventure at the age of eighteen.
Eighteen years of hard work finally paid off when she graduated.
They decided to travel abroad for their eighteenth anniversary together.
Eighteen is the age at which many people graduate from high school.
She celebrated her eighteenth birthday with a big party and all her friends.
The legal drinking age in many countries is set at eighteen.
Eighteen players on the field made for an exciting soccer match.
After turning eighteen, he felt a new sense of independence and responsibility.