An extension cord.

A barcode: a set of machine-readable lines of varying width placed on products to represent pricing or other such data.

ZIP code (US postal code)

chord progression

(computing) kuten code, the 4-digit codepoint of a character according to its location in JIS encodings

(computing) character encoding

Synonym of モールス符号 (Mōrusu fugō, “Morse code”)

Morse code

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.

Alternative spelling of 男の子 / Alternative spelling of 男の娘