1To print and put out into circulation a newspaper, magazine, book, etc.; publishing — also refers to a particular issue or edition.
その小説の続編は来月発行される予定だ。
The sequel to that novel is scheduled to be published next month.
この雑誌は隔週で発行されている。
This magazine is published every other week.
初版の発行部数はわずか千部だった。
The first edition had a print run of only a thousand copies.
2To officially create and issue something with legal or institutional validity, such as banknotes, securities, a passport, or a certificate.
市役所で住民票を発行してもらった。
I had the city office issue me a residence certificate.
その会社は新たに社債を発行して資金を調達した。
The company raised funds by issuing new corporate bonds.
パスポートの発行には二週間ほどかかると言われた。
I was told that issuing a passport takes about two weeks.
3In programming, to trigger and emit an event notification.
フォームが送信されると、submitイベントが発行される。
When the form is submitted, a submit event is raised.