compound (adjective) 部分、合成の、結合した(noun) 化合物、混合物、(verb) をさらにひどくする
(noun) a thing that is composed of two or more separate elements, a mixture, a substance formed from two or more elements chemically united in fixed proportions,
(adjective) made up or consisting of several parts or elements,
(verb) make up (a composite whole) constitute, make (something bad) worse, intensify the negative aspects
複利 compound interest
Compound interest is the greatest invention so far.