Another word for a hole in the ground is a pit or a cavity.
Another name for geothermal energy is ground source heat.
Firm, stable, solid, flat.
A pit or depression.
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Another name for ground grain is flour.
Another word for a hole in the ground is a pit or a cavity.
Battlezone, frontline, combat area, battle ground, or war zone. Those words mean combat zone.
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The word guidelines is a noun and means directions. Other words that mean guidelines are ground rules, codes, protocols, instructions, and markers.
A homophone for "stick in ground" is "shtick in ground." Homophones are words that sound the same but have different meanings.
Terra Firma is another term for solid ground
While lightning typically goes from a cloud to the ground and does rarely move upward from the ground, going from one part of the earth to another is unnecessary. Given a piece of negatively charged ground and another positively charged one, the path of least resistance would be through the ground rather than through the air.
Mausoleum
bankrupt
"Solid ground"
Rutted