About everything is a word that can be a substantive or one adverb. When is a noun it means coat, and as an adverb, it means "Above all", "principally" or "especially".
When referring to an item of clothing, the overcoat is a long coat, worn over the rest of the clothing on colder days. There are men's and women's overcoats, which can be made from different materials such as leather and wool.
The adverb "above all" is used to convey the idea of importance or priority in some text.
In English, the word above (noun) is translated as overcoat. For example: Even during the summer, he wears that black overcoat. - Even during Summer, he wears that black overcoat.
In case the word above all is an adverb, it can be translated as mainly or above all. For example: My hobbies are mainly related to the art world. - My hobbies are mainly / above all related to the world of arts.
above all or above all
Many people have doubts about wearing an overcoat or over everything. Above all, it is used in the cases mentioned above (as a garment or as an adverb that conveys the notion of priority and importance). The preposition with the two words written separately means "about everything". For example: In math class, we talk about everything but math.