Disparage  

Verb | dih-spar-ij
to belittle or speak down to

Dismay  

Verb | dis-mey
a strong feeling of disappointment and sadness

Disdain  

Noun | dis-deyn
a lack of respect and strong dislike (toward something or someone)

Discord  

Noun | dis-kawrd
disagreement

Dire  

Adjective | dahyuhr
hopeless and dangerous or fearful

Diminish  

Verb | dih-min-ish
to become smaller in scope or degree

Diligence  

Noun | dil-i-juhns
conscientiousness; the quality of being committed to a task

Dilemma  

Noun | dih-lem-uh
a problem, usually requiring a choice between two options