Questions about example sentences with, and the definition and usage of "Upper"

A:

It’s the opposite of lower. Your mouth has an upper lip and a lower lip.

Another meaning is the part of a shoe that is above the sole.

It can mean a stimulant drug. He took Amphetamines and now he is excitedly wild.

A: This is not common. I have never heard "upper echelon" used. It is a term used in essays and formal writings.
"Upper echelon" means "the higher level of a group."

Example:
"After many years, she was in the upper echelon of the city officials."

A: "os de cima" ou "drogas com efeitos estimulantes". Depende do contexto.

A: I sat on the upper deck of the double decker bus.

My room is on the upper floor of this house.

A: @mprietom15 "the bedroom is on the upper floor of the house"
"I couldn't reach the upper shelves"
"the upper part of the street was blocked"

A: I am from the upper part of Spain.
You are from the upper part of Thailand.

A: Upper is more a location like an upper shelf. Above is describing the relation between two objects. Like, “will you grab a plate from the upper cupboard?” “Above the stove?” “Yeah.” Or like “I put those plants on the upper shelf so the cats couldn’t eat them and get sick” or “I’m trying to decide which painting to put above the fireplace.” For upper it’s the top one of more than one of the same thing (shelves, drawers, etc) and above just means something is over something else.

A: I think that upper is like more literal? Like upper floor is placed higher and "higher" is not that literal like 7 is higher than 5 and it also refers to levels on computer games like lvl 7 is higher than lvl 5

A: they are very similar.

"the cabinet is above the sink"

"the cups are in the upper cabinets"

upper is used to describe something that is above something else

A: i think when you use upper, you are describing corners like.. thr upper part of the window or map, and above is what is on the object ( what is on top of another object ) and upper for the superior part of an object.

A: lower class or working class (労働者階級)

A: I will do everything it takes to reach the upper intermediate level by the time I go to Australia.

A: Check the question to view the answer

A: "I put you on uppers"
"I put you on X" means a doctor prescribed X drug for you to take.
"uppers" (as in "uppers" versus "downers") is a drug or substance that lifts you up / gives you energy.