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| The planet on which we live; the world, the planet third in order from the sun, |
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| The region of the atmosphere and outer space seen from the earth: |
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| The time of day when the Sun is out. |
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| The period of darkness in each twenty-four hours; the time from sunset to sunrise |
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The space past the Earth's atmosphere;
Outer space, or just space, is the void that exists between celestial bodies, including the Earth |
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| A visible mass of condensed water vapor floating in the atmosphere, typically high above the ground: |
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| The natural satellite of the earth, visible (chiefly at night) by reflected light from the sun. |
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| A natural body visible in the sky especially at night that gives off light or shines by reflection b : a ball-shaped gaseous celestial body (as the sun) of great mass that shines by its own light |
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| A moment, hour, day, or year as indicated by a clock or calendar |
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| The star around which the planets revolve, from which they receive heat and light |
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| the force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. |
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