horizon
noun
[ həˈrʌɪz(ə)n ]
• the line at which the earth's surface and the sky appear to meet.
• "the sun rose above the horizon"
• the limit of a person's knowledge, experience, or interest.
• "she wanted to leave home and broaden her horizons"
Similar:
range of experience,
outlook,
perspective,
scope,
perception,
compass,
sphere,
ambit,
orbit,
purview,
• a layer of soil or rock, or a set of strata, with particular characteristics.
Origin:
late Middle English: via Old French from late Latin horizon, from Greek horizōn (kuklos) ‘limiting (circle)’.