either - ad. one of two, but not the other

　　elect - v. to choose by voting

　　electricity - n. a form of energy that flows through wires to provide heat and light, and power to machines

　　embassy - n. the offices of an ambassador and his or her assistants

　　emergency - n. an unexpected and dangerous situation demanding quick action

　　emotion - n. a strong feeling such as love, hate, fear or sadness

　　employ - v. to give work in return for wages

　　empty - ad. having nothing inside; v. to remove everything

　　end - v. to stop; to finish; n. the part which comes last

　　enemy - n. a person opposing or hating another; a person or people of the other side in a war

　　energy - n. power used to do work, usually with machines; the ability and willingness to be active

　　enforce - v. to make something be done

　　engine - n. a machine that uses energy to cause movement or to do work

　　engineer - n. a person who designs engines, machines, roads, bridges or railroads

　　enjoy - v. to be pleased or satisfied by something

　　enough - ad. as much as necessary; pro. the amount needed

　　enter - v. to come or go into