n.an object or a piece of equipment that has been designed to do a particular job
A. distress
B. clue
C. drawer
D. device
n.an amount of a medicine or a drug that is taken once, or regularly over a period of time
A. dose
B. dawn
C. device
D. dew
n. the form of a language that is spoken in one area with grammar, words and pronunciation that may be different from other forms of the same language
A. dialect
B. diameter
C. density
D. challenge
v.to discover or notice sth., especially sth. that is not easy to see, hear, etc.
A. deceive
B. dismiss
C. detect
D. dictate