horizon

/həˈɹaɪ.zən/

Proposed by a contributor, not yet supported by evidence.

Also seen as: horizons

Sense 1

Meaning · English

The visible horizontal line (in all directions) where the sky appears to meet the earth in the distance.

Noun

Examples

A tall building was visible on the whole sweep of the horizon.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Meaning · English

The range or limit of one's knowledge, experience or interest; a boundary or threshold.

Noun

Examples

Some students take a gap year after finishing high school to broaden their horizons.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “horizon” mean?

The visible horizontal line (in all directions) where the sky appears to meet the earth in the distance.

Is “horizon” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.