noun
impression, impact
B1
Eindruck means 'impression' or 'impact'. It's a masculine noun (der Eindruck) with plural Eindrücke. Use definite article der (nom. sing.) and die (pl.). Note the umlaut in the plural. No special preposition; declines normally. Common collocations: guten Eindruck machen (to make a good impression).
Examples
Der Vortrag hinterließ den Eindruck, dass die Forschung noch viel Arbeit benötigte.
The lecture left the impression that the research still needed a lot of work.
Der erste Eindruck ist oft der wichtigste.
The first impression is often the most important.
Der erste Eindruck war sehr positiv.
The first impression was very positive.
Details
Mnemonics
Imagine a big stamp pressing an image into paper — that stamped image is an 'Eindruck'.
Sounds like 'in-druk' — imagine the word 'druk' (like 'druck' = press).
der — picture a man (male figure) stamping an impression to remember masculine gender.
Notes
Common collocations: 'guten Eindruck machen' (to make a good impression). Watch out for false friends: 'Druck' is pressure, while 'Eindruck' is impression.