will you marry me

A stock phrase in Japanese pop culture supposedly used by the wife in a newly-wed couple to invite her new husband to bed.

Kyūjitai form of 私生児 (“illegitimate child”)

a cough

seat / mat / location

seat / meeting place; venue / position; status

lagoon

height, stature

to analyze

infrared radiation / Short for 赤外線通信 (sekigaisen tsūshin, “IR communication”).