Upper vs Dupper - What's the difference?

As nouns the difference between upper and dupper

is that upper is that which is higher, contrasted with the lower while dupper is alternative form of nodot=yes|lang=en (a kind of bottle.

is at a higher level, rank or position.

(en noun)

That which is higher, contrasted with the lower.

As the restless sleeper here, I'll take the lower berth. You take the upper .

(shoemaking) The piece of leather, etc., that forms the top part of a shoe above the sole.

A stimulant such as amphetamine that increases energy and decreases appetite.

* (shoemaking) vamp

(-)

At a higher level, rank or position.

Situated on higher ground, further inland, or more northerly.

(geology, of strata or geological time periods) younger, more recent

(education) Of or pertaining to a secondary school.

* (at a higher position) lower, under * (situated higher) lower * (more recent) lower

* Upper Sorbian * Upper Volta * upper arm * upper case * upper class * upper house * uppermost