- duodecimal notation
- duodenal smear
- duologue
- duple
- duodenum
- duple time
- duplex
- duplex apartment
- duplicability
- duplicable
- duplex house
- duplicatable
- duplicator
- duplicidentata
- durability
- dura
- durable goods
- durable
- dura mater
- durables
- duramen
- duralumin
- durban
- durango
- durante
- durant
- durga
- durer
- durative
- durative aspect
- durazzo
- duration
- durham
- durian
- durio zibethinus
- durra
- durmast
- durian tree
- durres
- durion
- durkheim
- durrell
- during
- duse
- dusanbe
- dushanbe
- dusicyon
- dusky salamander
- duskiness
- dusicyon cancrivorus