erwähnen
to mention
To briefly bring something up or name it in a conversation or text without discussing it in detail.
Er hat nur nebenbei erwähnt, dass er bald umziehen wird.
He only mentioned in passing that he will be moving soon.

to mention
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to mention
To briefly bring something up or name it in a conversation or text without discussing it in detail.
Er hat nur nebenbei erwähnt, dass er bald umziehen wird.
He only mentioned in passing that he will be moving soon.

'Erwähnen' (to mention) can take a direct object in the accusative. It can also be used with a subordinate clause introduced by 'dass' (that), or with an infinitive construction using 'zu' (to).
Sie hat deinen Namen erwähnt.
She mentioned your name.
The verb 'erwähnen' (to mention) belongs to neutral to slightly formal standard language. It is often used in meetings, reports, or factual conversations.
In seinem Vortrag erwähnte der Redner auch die wirtschaftlichen Risiken.
In his talk, the speaker also mentioned the economic risks.
To emphasize that something is said only briefly or in passing, 'erwähnen' (to mention) is often combined with adverbs like 'kurz' (briefly), 'nebenbei' (in passing), or 'beiläufig' (casually/in passing).
Ich wollte nur kurz erwähnen, dass das Treffen morgen ausfällt.
I just wanted to briefly mention that tomorrow's meeting is canceled.
to say
'sagen' and 'erwähnen' both mean that something is communicated in words. 'sagen' is the general word for making a statement. 'erwähnen' is used when you bring up a topic only briefly and do not talk about it at length. The words can be confused because both happen in conversations or texts. The difference is the focus: with 'sagen', the statement itself is important; with 'erwähnen', it is often only about something coming up briefly.

Sie erwähnt am Bahnhof kurz, dass sie heute nichts gegessen hat.
At the train station, she briefly mentions that she has not eaten anything today.
In der E-Mail sagt der Techniker, dass der Computer morgen geprüft wird.
In the email, the technician says that the computer will be checked tomorrow.