to clarify
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to clarify
To investigate and clarify an open question, problem, or situation in order to create certainty or a basis for a decision.
Ich muss erst mit meinem Chef abklären, ob ich morgen freinehmen kann.
I first have to clarify with my boss whether I can take tomorrow off.
'Abklären' (to clarify) is a separable verb. In a main clause, the prefix 'ab-' moves to the end of the sentence. In the infinitive with 'zu', 'zu' comes between the prefix and the verb stem.
Ich kläre die Details morgen mit ihr ab.
I'll clarify the details with her tomorrow.
The verb consists of 'ab-' and 'klären' (to clarify). Here, the prefix 'ab-' reinforces the idea of completeness: you clarify something until it is finally and completely resolved.
Bevor wir starten, müssen wir alle offenen Punkte abklären.
Before we start, we have to clarify all open points.
When you clarify something with a person, the typical structure is: 'etwas (Akkusativ) mit jemandem (Dativ) abklären' (to clarify something with someone).
Klären Sie den genauen Liefertermin bitte mit der Logistikabteilung ab.
Please clarify the exact delivery date with the logistics department.
In a medical context, 'abklären' (to clarify / check) is almost always combined with the verb 'lassen': 'etwas abklären lassen' (to have something checked). This means that you ask a doctor to carry out the examination.
Bei anhaltendem Schwindel sollte man die Ursache ärztlich abklären lassen.
If dizziness persists, you should have the cause checked by a doctor.
to determine / notice / secure
'feststellen' and 'abklären' can both appear in situations where something is unclear and you want to gain certainty. 'feststellen' emphasizes the result: you recognize or confirm something, also officially or medically. 'abklären' emphasizes the process: you investigate a question, talk to others, or have something checked so that it is clear afterward. In a medical context, you have symptoms 'abklären' (checked/clarified), and afterward a doctor may be able to 'etwas feststellen' (determine something). Learners may confuse the words because both have to do with clarification. 'abklären' fits more before the certain answer, while 'feststellen' fits more with the certain answer.
Nach der Nachricht hat der Verkäufer zu Hause noch einmal den Liefertermin abgeklärt.
After the message, the salesperson checked the delivery date again at home.
Die Ärztin hat nach der Untersuchung eine leichte Entzündung festgestellt.
After the examination, the doctor determined that there was a mild inflammation.