at-home clothes

an adult son residing with his parents; generally has not yet or can not come into family inheritance / a female servant working in a daimyō, ōoku, or other high-ranking house

room rent

(telephony) country code

telephone number

individual number, personal identification number, social security number

Alternative spelling of 携帯番号 (keitai bangō)

mobile phone number

(physics, chemistry) atomic number

number (on an athlete's uniform's back); jersey number, uniform number, player number, shirt number