A notification is official information sent to tell you that something has happened, will happen, or needs your attention.

A notificationA notification（通知） is official information sent to tell you that something has happened, will happen, or needs your attention是正式送來告訴你某件事已經發生、將要發生，或需要你注意的訊息。

In older, careful English it is a formal message: written notification of a meeting, notification of results, we have received notification that… Offices, schools, courts, and banks still use it that way, and it feels a little stiff — many people would just say a notice or a letter.

In older, careful English it is a formal message在比較講究的老式英語裡，它是一種正式訊息: written notification of a meeting, notification of results, we have received notification that…像written notification of a meeting（會議的書面通知）、notification of results（結果通知）、we have received notification that…（我們已收到通知說…）Offices, schools, courts, and banks still use it that way政府機關、學校、法院，和銀行仍然這樣用, and it feels a little stiff感覺有點生硬 — many people would just say a notice or a letter很多人乾脆就說notice（公告）或letter（信）。

Though actually, the word students meet every day now is the little alert on a phone or computer: a notification that a message has arrived, that a bill is due, that an app wants you to look. That is the same idea — information pushed to you — only the channel is a screen, not an envelope.

Though actually不過其實, the word students meet every day now is the little alert on a phone or computer學生現在每天遇到的，是手機或電腦上的那個小提示: a notification that a message has arrived, that a bill is due, that an app wants you to look像是有訊息進來、帳單到期，或app要你去看一下的notification。That is the same idea — information pushed to you那其實是同一個概念——把資訊推送給你, only the channel is a screen, not an envelope只是管道換成螢幕，不是信封。

In both uses, a notification is the message itself, not the event it talks about. You get a notification; you do not “do a notification”.

In both uses這兩種用法裡, a notification is the message itselfnotification指的都是那則訊息本身, not the event it talks about不是它講的那件事本身。You get a notification你會收到一則notification; you do not 'do a notification'但不會說你'do a notification'。