sum

As nouns the difference between sum and bum

is that sum is noise (sound or signal generated by random fluctuations) while bum is the buttocks or bum can be (north america|colloquial) a hobo; a homeless person, usually a man or bum can be (dated) a humming noise or bum can be (obsolete) a bumbailiff.

As a verb bum is

(uk|transitive|colloquial) to sodomize; to engage in anal sex or bum can be (colloquial) to ask someone to give one (something) for free; to beg for something or bum can be to depress; to make unhappy or bum can be to make a murmuring or humming sound.

As an interjection bum is

(label) an expression of annoyance.

As an adjective bum is

of poor quality or highly undesirable .

As a noun sum

is noise (sound or signal generated by random fluctuations).

As a symbol gum is

the iso 3166-1 three-letter (alpha-3) code for guam.

As nouns the difference between sum and scum

is that sum is noise (sound or signal generated by random fluctuations) while scum is (uncountable) a layer of impurities that accumulates at the surface of a liquid (especially molten metal or water).

As a verb scum is

to remove the layer of scum from (a liquid etc).

As nouns the difference between sumo and sum

is that sumo is (label) (martial art) while sum is noise (sound or signal generated by random fluctuations).

As verbs the difference between swum and sum

is that swum is past participle of swim while sum is to add together.

As a noun sum is

a quantity obtained by addition or aggregation.

As a noun sum is

noise (sound or signal generated by random fluctuations).

As nouns the difference between taxonomy and sum

is that taxonomy is the science or the technique used to make a classification while sum is noise (sound or signal generated by random fluctuations).

As nouns the difference between sum and ach

is that sum is noise (sound or signal generated by random fluctuations) while ach is (military|us).

As a proper noun ach is

(banking|us) , an electronic banking network often used for direct deposit and electronic bill payment.

As nouns the difference between sum and ore

is that sum is a quantity obtained by addition or aggregation while ore is rock that contains utilitarian materials; primarily a rock containing metals or gems which—at the time of the rock's evaluation and proposal for extraction—are able to be separated from its neighboring minerals and processed at a cost that does not exceed those materials' present-day economic values.

As a verb sum

is to add together.

As nouns the difference between sum and aire

is that sum is a quantity obtained by addition or aggregation while aire is obsolete spelling of lang=en.

As a verb sum

is to add together.

As a proper noun Aire is

a river in Yorkshire, England, which flows past Leeds and gives its name to the Airedale.