sum

As an adjective sumptuous

is magnificent, luxurious, splendid.

As a noun sum is

noise (sound or signal generated by random fluctuations).

Sum is a related term of abundance.

As nouns the difference between sum and abundance

is that sum is noise (sound or signal generated by random fluctuations) while abundance is a large quantity; many .

Sum is a related term of vastness.

As nouns the difference between sum and vastness

is that sum is noise (sound or signal generated by random fluctuations) while vastness is (uncountable) the quality of being vast.

As nouns the difference between increment and sum

is that increment is the action of increasing or becoming greater while sum is a quantity obtained by addition or aggregation.

As verbs the difference between increment and sum

is that increment is to increase by steps or by a step, especially by one while sum is to add together.

Sum is a related term of apportionment.

As nouns the difference between sum and apportionment

is that sum is noise (sound or signal generated by random fluctuations) while apportionment is the act of apportioning or the state of being apportioned.

Sum is a related term of measure.

As nouns the difference between sum and measure

is that sum is noise (sound or signal generated by random fluctuations) while measure is the quantity, size, weight, distance or capacity of a substance compared to a designated standard.

As a verb measure is

to ascertain the quantity of a unit of material via calculated comparison with respect to a standard.

As nouns the difference between heap and sum

is that heap is heap while sum is noise (sound or signal generated by random fluctuations).

As nouns the difference between segment and sum

is that segment is a length of some object while sum is a quantity obtained by addition or aggregation.

As verbs the difference between segment and sum

is that segment is to divide into segments or sections while sum is to add together.

Sum is a related term of expanse.

As nouns the difference between sum and expanse

is that sum is noise (sound or signal generated by random fluctuations) while expanse is a wide stretch, usually of sea, sky, or land.

In transitive terms the difference between portion and sum

is that portion is to endow with a portion or inheritance while sum is to give a summary of.