Blouse is commonly used in the UK, only for women's shirts - note the buttons are on different sides ;-) ! However, although I have not met a picture definition yet of this word in Duolingo, I did see η μπλούζα with a picture of a T-shirt... I've not learned T-shirt yet... is it the same in Greek?
when you look at pictures on Internet both En blouses and Gr μπλούζες are shirts , but shirts without buttons. In Gr there are μπλούζες με λαιμόκοψη ( I suppose they open in a cirrcle around the neck) , μλούζες με βε (with a vee) and how nice μπλούζες με χαμόγελο (with a smile)
Also the coat which a doctor wears is called (άσπρη) μπλούζα
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