once again
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once again
Colloquial form of 'wieder einmal' (once again), which expresses that something is happening again or as it has often happened before. It can be a neutral statement or carry a slight undertone of annoyance or resignation.
Jetzt stehe ich wiedermal im Stau.
Now I'm stuck in traffic once again.
'Wiedermal' is a colloquial contraction of 'wieder einmal' (once again). This form is very common in spoken language.
Das war wiedermal eine tolle Party gestern!
That was a great party again yesterday!
Because 'wiedermal' (once again) is colloquial, it should be avoided in formal texts such as emails to supervisors or academic papers. In those contexts, 'wieder einmal' is the correct form.
Ich muss Sie bitten, die Unterlagen wieder einmal zu überprüfen.
I must ask you to review the documents once again.
As an adverb, 'wiedermal' (once again) can stand in position 1, followed by the verb. It can also stand inside the sentence after the verb and the subject.
Wiedermal habe ich meinen Schlüssel vergessen.
Once again, I forgot my key.
again
'erneut' and 'wiedermal' both say that something happens again. 'erneut' is neutral and fits well in factual or formal sentences. 'wiedermal' is colloquial and sounds like 'wieder einmal' (once again). It can simply sound casual, but it can also show that you have experienced something often before and may be annoyed. If you want to stay neutral, use 'erneut'. If you want to sound more personal or slightly annoyed in everyday speech, 'wiedermal' fits.
Der Drucker funktioniert wiedermal nicht, obwohl ich ihn gestern repariert habe.
The printer isn't working again, even though I repaired it yesterday.
Nach dem Arzttermin muss meine Nachbarin erneut zur Kontrolle kommen.
After the doctor's appointment, my neighbor has to come in again for a check-up.