insider
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insider
A person who, because they belong to a particular group, company, or organization, has special, often confidential knowledge that is not accessible to outsiders.
Ein Insider aus dem Ministerium gab den entscheidenden Hinweis an die Journalisten.
An insider from the ministry gave the decisive tip to the journalists.
The word 'Insider' comes from English and is made up of 'inside' and the ending '-er' for a person. So it literally describes someone who is 'inside' an organization or group.
Nur ein Insider konnte von den geheimen Plänen wissen.
Only an insider could have known about the secret plans.
To say which group an insider belongs to, you usually use the prepositions 'aus' (from) or 'von' (from/of), followed by a dative.
Ein Insider aus der Finanzbranche warnte vor der Krise.
An insider from the financial sector warned about the crisis.
The word 'Insider' is often used as the first part of compound nouns to describe special knowledge. Typical examples are 'Insiderwissen' (insider knowledge), 'Insidertipp' (insider tip), and 'Insiderhandel' (insider trading).
Mit seinem Insidertipp hat er uns sehr geholfen.
His insider tip helped us a lot.
expert
'der Experte' and 'der Insider' both have special knowledge. With 'Experte', this knowledge usually comes from training, experience, or long involvement with a topic. An 'Insider' knows something because they belong to a group, company, or organization and have inside information. The words can be confused because both know more than others. But an insider does not have to be the best specialist; above all, they have access to internal information.
Vor dem Termin haben wir mit einem Insider gesprochen, der die Pläne der Firma kannte.
Before the appointment, we spoke with an insider who knew the company’s plans.
Nach der Arbeit fragt du den Experten, wie man die Daten richtig schützt.
After work, you ask the expert how to protect the data properly.