Pre-Fix (Dd)

Question 1

deca

Answer 1

Ten

Decade:(n) ten years
Decathlon:(n) a sports competition composed of ten events

Question 2

di, dia

Answer 2

In two, across, through

Diagnose:(v) to determine the nature of sickness by examining
Dialogue:(n) conversation between two or more persons
Diameter:(n) a line going through a circle, dividing it in two

Question 3

di, dis

Answer 3

Away from, reversal, not

Diffuse:(v) to pour out and spread, as in a fluid
Dilate:(v) to widen; to expand
Disperse:(v) to spread over a wide area; to drive away in various directions

Question 4

dys

Answer 4

Faulty, abnormal

Dysfunctional:(adj) poorly functioning
Dyslexia:(n) an impairment or reading ability due to a neurological problem

Question 5

de

Answer 5

Away, off, down, reversal

Decipher:(v) to interpret; to decode; to discern a hidden meaning
Defame:(v) to slander; to publicly speak ill of
Delineate:(v) to draw the outlines of; to sketch; to describe
Descend:(v) to move from a higher to lower place