duet
Some words that start with the prefix "du" are duplicate, dual, durable, and duet.
See the related link for a list with OVER 1,500 words starting with the prefix IN.
duplex duet dual dualism
Yes, spec is a prefix. See the related question for a list of words beginning with this prefix.
Bio- means life......and some words areBiologyBiographyBio hazard
Words That Begin With Dudungdudeduringdumpduodualdurabledurationduedukedunedupeduckdustduffdullmy wordsduetdualduplication
PostcardPostofficepostponepostplanposthumouspostmarkpostagepostscriptpostdate
periphery periscope perimeter
complete,complain,computer,
The prefix of the word "duplicate" is "du-".
Some examples of words with the prefix "sys" include: system, systematic, synergy, and symbiosis.
Mircro is the prefix for small. Some words are microscope, microfilm, microvolt, mircrometer, microcard, etc.