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”)

New Tokyo International Airport (TYO), currently named Narita International Airport)

decimal point, radix point

(dated) something that stands out among many other things / (figuratively) a single woman among many men

in kambun, a type of kaeriten in which the reading order is marked with numbers 1, 2, 3... indicating the order

astigmatism (defect of a lens)

break-even point

ditto mark (〃)

(typography) the iteration mark 〻, used to repeat kanji, historically mostly kanji with kun'yomi