番

retired (uniform) number

Slang

secret leader of a group of juvenile delinquents

Abbreviation

program in a competing timeslot (programme)

(telephone) area code (non-local)

one's turn (esp. in go, shogi, etc.)

Slang

leader of a female gang; leader of a group of delinquent girls

list of the richest people; billionaires list

seat number

rotation (e.g. of a duty); taking turns

namesake program; namesake show; TV or radio program named after the main performer or a sponsor

stock number (of item); part number; PN

first cockcrowing

local program; local programme

errand runner

Historical term

messenger (Azuchi-Momoyama period); patroller

Historical term

minor official (Edo period)

instructor

contest decided by a single round (bout); contest decided by a single roll of dice; one-shot game (contest); make-or-break game

reference number; serial number

Slang

sexual intercourse (esp. with a prostitute); actual sex (in movies, etc.)

becoming part of the standard inventory (of a product); becoming popular

Computing

class number

program competing with another in the same timeslot (programme); counterprogram (television)

atomic number

long-running (TV, radio) program

extension number

gatekeeper; crossing guard