白痴 (はくち)idiot; retard; idiocy

白痴, its kanji, and other words that share them.Open this graph

Kanji in 白痴

白しろwhite
白人はくじんwhite person; Caucasian
白書はくしょwhite paper
空白くうはくblank space (in documents)
白紙はくしwhite paper; flyleaf
明白めいはくobvious; clear
白血病はっけつびょうleukemia
自白じはくconfession; acknowledgement
痴呆ちほうdementia
愚痴ぐちidle complaint; grumble
方向音痴ほうこうおんち(person with) no sense of direction; poor sense of locality
痴呆症ちほうしょうdementia
痴漢ちかんmolester; groper
音痴おんちtone-deafness; amusia
一億総白痴化いちおくそうはくちかtransformation of the population of Japan into idiots (because of television)
乱痴気パーティーらんちきパーティーdrunken bash; rave party

See how 白痴 connects to the rest of Japanese.