Above has 8 different meanings across 4 categories:
Heaven.
"She believed that her prayers would reach above to heaven."
Of heaven; heavenly.
"The ancient poet described the stars as shining above, believing they were messages from heaven."
in or to a place that is higher
"The bird flew above the tall trees."
Directly overhead; vertically on top of.
"The chandelier hung directly above our heads, casting light onto the dinner table below."
In plain English: Above means higher than something else when used as an adverb to show position.
"We must think above our daily worries and plan for tomorrow."
Physically over; on top of; worn on top of, said of clothing.
"She placed the book above the lamp and put her scarf above her shoulders to keep warm."
The word "above" comes from Middle English and Old English, where it originally meant "on over." It is formed by combining words meaning "on" and "over," which are related to similar terms in other Germanic languages like Icelandic and Dutch.