尾数

wei3 shu4

remainder (after rounding a number); decimal part (of number after the decimal point); mantissa (i.e. fractional part of common logarithm in math.); small change; balance (of an account)

尾子

wei3 zi5

tail; end; small change; odd sum remaining after large round number

结尾

jie2 wei3

ending; coda; to wind up

马尾

ma3 wei3

ponytail (hairstyle); horse's tail; slender fibers like horse's tail (applies to various plants)

尾

wei3

tail; remainder; remnant; extremity; sixth of the 28 constellations; classifier for fish