debase

degrade; reduce in quality or value; degenerate; lower in esteem; disgrace; N. debasement

debauch

corrupt morally; seduce from virtue; N. debauchery: wild behavior (with sex and alcohol)

debilitate

weaken (esp. through heat, hunger, illness); enfeeble

debonair

(of men) friendly, charming, and fashionably dressed; aiming to please; CF. of good disposition

debris

rubble; wreckage; scattered remains of something broken or destroyed

debunk

expose as false, exaggerated, worthless, etc.; ridicule

debut

d’ebut; first public appearance; formal presentation of a young woman to society

debutante

young woman making formal entrance into society

decadence

decay; fall to a lower level (of morality, civilization, or art); ADJ. decadent

decant

pour off gently (wine or liquid)

decapitate

behead

decelerate

slow down

deciduous

falling off at a specific season or stage of growth as of leaves; Ex. deciduous tree/teeth

decimate

kill (usually one out of ten or every tenth man); destroy or kill a large part of

decipher

decode; CF. indecipherable

declivity

downward slope