- decorum: proper behavior
- deduction: subtraction, reasoned conclusion
- deign: condescend
- despondent: feeling or showing extreme discuragement
- dialogue: conversation
- divulge: reveal, expose
- eclectic: choosing the best from varied sources
- ellipse: oval shape
- embargo: prohibiting merchant ships from entering and leaving ports
- enthusiastic: strong excitement or feeling
- exponent: mathematical symbol showing how many times a number is to repeated as a factor;(optional) advocate
- exult: rejoice in triumph