1. The state or condition of being single; unmarried status
She embraced singleness and focused on her career.
Ela abraçou a vida de solteira e se concentrou em sua carreira.
2. The quality of being unique, distinctive, or individual
The singleness of his artistic vision set him apart from other painters.
A singularidade de sua visão artística o distinguia de outros pintores.
3. Undivided attention or focus; dedication to one purpose
He pursued his goal with singleness of purpose.
Ele perseguiu seu objetivo com dedicação singular.