Deber
To owe, must, ought (should)
Decidir
To decide
Defender
To forbid, defend, prohibit
Dejar
To let, permit, allow, leave
Delinquir
To break the law, be guilty, offend
Demostrar
To demonstrate, prove
Desayunarse
To have breakfast
Descansar
To rest
Describir
To describe, sketch, delineate
Cumplir
To fulfill, keep(a promise), have a birthday