der Look
look
The outward appearance or style of a person, often in relation to clothing, hairstyle, and makeup.
Ihr neuer Look mit den kurzen Haaren steht ihr ausgezeichnet.
Her new look with the short hair suits her excellently.

look
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look
The outward appearance or style of a person, often in relation to clothing, hairstyle, and makeup.
Ihr neuer Look mit den kurzen Haaren steht ihr ausgezeichnet.
Her new look with the short hair suits her excellently.

'Look' is a word that was borrowed directly from English. In German, however, it is treated like a German noun, so it is capitalized and used with the article 'der'.
Dieser Look ist gerade total angesagt.
This look is totally in right now.
The word 'Look' belongs to modern everyday language, especially when it comes to fashion, design, and lifestyle. It is used less often in very formal or academic texts.
Die Zeitschrift zeigt die neuesten Looks vom Laufsteg.
The magazine shows the latest looks from the runway.
To describe the style of objects, the structure 'im ...-Look' (in a ... look/style) is often used. An adjective or noun that describes the style comes before 'Look'.
Sie hat ihre Wohnung komplett im skandinavischen Look eingerichtet.
She furnished her apartment completely in a Scandinavian look.
style
'der Stil' and 'der Look' can both describe the impression something or someone gives. But 'Stil' is broader: it can refer to fashion, art, texts, rooms, or designs, and it means the typical way something is designed or presented. 'Look' refers more strongly to the visible outward appearance, especially with clothing, hairstyle, and makeup. For a person, 'Look' is often more concrete and more fashion-related. 'Stil' sounds more neutral and general. Learners may confuse the words when talking about fashion. A practical guide: a look is often what you see immediately; a style is the more general approach behind it.

Morgen probiere ich für die Feier einen neuen Look aus.
Tomorrow I’m going to try out a new look for the party.
Der Stil des neuen Cafés ist schlicht und modern.
The style of the new café is simple and modern.