Use 'number one' to show what you value most, like a goal or person.

Expressing Value

Add emotional strength to your statement when something really matters to you.

Emotional Emphasis

Using 'number one' too often can weaken its impact or seem insincere.

Emphasize something's top position in a competitive situation.

Celebrate or acknowledge someone's or something's achievement.

Point out the first or most important point in a list or argument.

Indicate your top personal preference in a casual, conversational context.

Informally let others know you need to urinate, but it might be too casual for some settings.