Misspelling of rear admiral (upper half).

plural of shaker-upper

plural of upperpart

Any of the upper parts of a bird, including the mantle, back, rump and upper part of the tail coverts

(computing) The area of memory between 640 kB and 1 MB in an IBM-compatible PC.

plural of upper limit

(US slang) Completely out of money; broke.

(mathematics, order theory) A subset of a poset which contains any ascending chain which starts at any element of itself.

simple past tense and past participle of re-up

(Egyptology) The part of Ancient Egypt south of Memphis, so named because the Nile flows south to north.