horizon

/həˈɹaɪzən/noun

The distant line where the land or sea seems to touch the sky.

Example sentence

“The sun slowly sank below the horizon.”

'On the horizon' means coming soon, and 'broaden your horizons' means widen your experience. Both are everyday idioms.

Related words

climateThe general mood or set of conditions surrounding a situation, such as politics or public opinion.waterfallWater pouring down over the edge of a steep drop or cliff.sunsetThe time in the evening when the sun drops below the horizon in the west.meadowAn open area of grassy land, often grown so the grass can be cut for hay.sunriseThe moment in the morning when the sun rises above the horizon in the east.wildlifeAnimals living free in nature, especially mammals, birds, and fish, rather than kept by people.