Glasses with tinted or dark lenses that protect the eyes from the brightness and harmful radiation of the sun.
example
An sonnigen Tagen vergesse ich nie, meine Sonnenbrille aufzusetzen.
On sunny days, I never forget to put on my sunglasses.
Usage tips
Word composition
The word is a compound made from 'die Sonne' (the sun) and 'die Brille' (glasses). So it is literally glasses that you wear in the sun.
EXAMPLE
Bei diesem hellen Licht brauche ich unbedingt eine Sonnenbrille.
In this bright light, I absolutely need sunglasses.
Typical verbs
Certain verbs are used with 'Sonnenbrille' (sunglasses): you can 'aufsetzen' (put them on), 'abnehmen' (take them off), or 'tragen' (wear them).
EXAMPLE
Er setzte seine Sonnenbrille auf, als er das Haus verließ.
He put on his sunglasses when he left the house.
Singular for one pair
Although glasses have two lenses, in German you say 'eine Sonnenbrille' (a pair of sunglasses) in the singular when you mean one pair. The plural 'Sonnenbrillen' is used only for several individual pairs of sunglasses.
EXAMPLE
Ich glaube, ich habe meine Sonnenbrille im Auto liegen lassen.
I think I left my sunglasses in the car.
Compare with
near_synonym · confusable
Sonnenbrille vs Brille
glasses
'die Brille' and 'die Sonnenbrille' are both things you wear in front of your eyes. 'Brille' usually means glasses that help you see better. 'Sonnenbrille' means glasses with dark lenses that protect you from the sun and bright light. Sunglasses can also have prescription lenses, but protection from the sun is the important point. Learners may confuse the words because sunglasses are also a type of glasses. If you are talking generally about seeing better, you say 'Brille'. If it is about sun, the beach, driving in bright light, or dark lenses, 'Sonnenbrille' fits.
Sonnenbrille
Im Auto setzt Tom seine Sonnenbrille auf, weil die Sonne tief steht.
In the car, Tom puts on his sunglasses because the sun is low.
Brille
Ohne ihre Brille kann Anna die Tafel kaum lesen.
Without her glasses, Anna can hardly read the board.