das Deo
deodorant
Short form of Deodorant; a cosmetic product applied to the skin to prevent or cover up body odor.
Ich habe heute Morgen vergessen, Deo zu benutzen.
I forgot to use deodorant this morning.

deodorant
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deodorant
Short form of Deodorant; a cosmetic product applied to the skin to prevent or cover up body odor.
Ich habe heute Morgen vergessen, Deo zu benutzen.
I forgot to use deodorant this morning.

'Deo' (deodorant) is a very common short form of the word 'Deodorant' (deodorant). In everyday speech, the short form is used almost exclusively.
Kannst du mir aus dem Supermarkt bitte ein Deo mitbringen?
Could you please bring me a deodorant from the supermarket?
Common verbs used with 'Deo' (deodorant) are 'Deo benutzen' (to use deodorant), 'Deo auftragen' (to apply deodorant), or 'sich mit Deo einsprühen' (to spray oneself with deodorant).
Nach dem Sport dusche ich und benutze dann Deo.
After exercising, I shower and then use deodorant.
'Deo' (deodorant) is often used as the first part of compound nouns to describe the type of product. Examples are 'der Deoroller' (roll-on deodorant), 'das Deospray' (deodorant spray), or 'der Deostick' (deodorant stick).
Ich bevorzuge einen Deoroller, weil er praktischer ist als ein Spray.
I prefer a roll-on deodorant because it is more practical than a spray.
perfume
'Deo' and 'Parfüm' both have to do with body odor or scent. 'Deo' is used mainly under the arms so that body odor does not develop or smells less strong. 'Parfüm' is applied so that you have a pleasant scent. Learners may confuse the words because both are often kept in the bathroom and put on the skin. In everyday use: 'Deo' is more for freshness and against sweat odor, while 'Parfüm' is for a special scent.

Nach dem Sport benutzt Ali ein Deo, bevor er zur Arbeit fährt.
After exercising, Ali uses deodorant before he goes to work.
Für die Feier nimmt Lena nur ein wenig Parfüm.
For the party, Lena uses only a little perfume.