This project is focused on a single goal.

This project is focused on a single goal.

He doesn't waste even a single grain of rice.

He knows nothing about that one case.

One part is important.

He read the Thousand and One Nights and was drawn to the charm of the Orient.

He said, 'Each person has one life, like a pike or a shrimp,' and decided to live his life with care.

He drew a hendecagon shape.

His party trick is perfect for livening up the party.

The First International was an international organization of workers.