preservation
The term "upkeep" means the process of keeping something in good condition. It can also mean financial or material support of a person or animal. Words with similar meaning include conservation.
Conceited.
The definition of the word 'quasi' is that of a term used in a similar manner, in a similar way or of similar characteristics. The term can also be used with the meaning of resembling something.
There is no precise synonym for cyborg, however, the term android has a similar meaning.
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'Eskoms' has no meaning - it is gibberish. The only word similar to that is 'eskimo' which is an out-dated meaning for the Inuit peoples of north America.
The upper, fortified part of an old city.
no
The laws of conservation of mass and conservation of energy are similar in that both state that the total amount of mass or energy in a closed system remains constant over time. However, the conservation of mass applies specifically to mass, while the conservation of energy applies to energy in its various forms (kinetic, potential, etc.).
Arabic. It original meaning was simply spirit, similar to djinni. But the term has grown since then.
There is a slang term "advit" that has no actual specific meaning. The similar word advert is short for advertisement.
The term "messrs" is a plural form of the title "mister" and an abbreviation of the similar "messieurs". It's often used in English honorifics for men.