a traffic accident

Visualization. / Visual control: a business management technique whereby information is communicated using visual signals in order to facilitate quick understanding or increase efficiency and clarity.

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

(aeronautics) trailing edge

after school

(anatomy) an occiput

a back gate / (figuratively) the anus, as a homophone for 肛門 and in contrast to 前門 (zenmon, “front gate”, figurative for vagina)