E 字头
each - ad. every one by itself

early - ad. at or near the beginning, especially the beginning of the day; opposite late 

earn - v. to be paid in return for work done 

earth - n. the planet we all live on; the ground or soil 

earthquake - n. a sudden, violent shaking of the earth's surface 

ease - v. to reduce; to make less difficult 

east - n. the direction from which the sun rises 

easy - ad. not difficult; not hard to do 

eat - v. to take food into the body through the mouth 

ecology - n. the scientific study of the environment and links among living and material things 

economy - n. the system by which money, industry and trade are organized 

edge - n. the line where something ends or begins

education - n. the act of teaching 

effect - n. the result or change caused by something ("The storm had a serious effect on the economy.")

effort - n. an attempt; the work necessary to do something

egg - n. the rounded object containing unborn young produced by female birds, fish or reptiles; a single cell in a female person or animal that can develop into a baby

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 

environment - n. all surrounding things, conditions and influences that affect life; the natural world of land, sea, air, plants and animals 

equal - ad. the same in amount, size, weight or value; having the same rights 

equipment - n. things, tools or machines needed for a purpose or activity 

escape - v. to get free; to get away from; to get out of 

especially - ad. more than others ("We liked the food, especially the fish.") 

establish - v. to bring into existence; to create

estimate - v. to form an opinion about a value, size or amount using less than complete information 

ethnic - ad. of or concerning people belonging to a large group because of their race, religion, language, tribe or where their ancestors lived

evaporate - v. to change from a liquid into a gas 

even - ad. in a way not thought possible ("They survived, even though the building was destroyed.") 

event - n. that which happens, especially something of importance 

ever - ad. at any time

every - ad. each one; all 

evidence - n. material or facts that prove something; a reason for believing 

evil - ad. not good; extremely bad 

exact - ad. having no mistakes; correct in every detail 

examine - v. to study closely 

example - n. a part that shows what the rest of a thing or group is like

excellent - ad. extremely good 

except - prep. but for 

exchange - v. to trade; to give or receive one thing for another 

excuse - v. to take away blame; to pardon; to forgive; n. a reason (sometimes false) for an action

execute - v. to kill 

exercise - n. an activity or effort for the purpose of improving the body or to stay in good health

exile - v. to force a person to leave his or her country; to expel; n. a person who is forced to leave his or her country

exist - v. to be; to live 

expand - v. to make larger; to grow larger 

expect - v. to think or believe that something will happen; to wait for an event 

expel - v. to force out; to remove from; to send away 

experience - v. to live through an event, situation or condition ("She experienced great pain."); n. something that one has done or lived through ("The experience caused her great pain.") 

experiment - v. to test; n. a test or trial carried out to prove if an idea is true or false, or to discover something 

expert - n. a person with special knowledge or training 

explain - v. to give reasons for; to make clear; to tell about; to tell the meaning 

explode - v. to break apart violently with a loud noise, like a bomb

explore - v. to travel in a place that is not well known to learn more about it; to make a careful search; to examine closely

export - v. to send to another country; n. something sent to another country, usually for sale

express - v. to say clearly 

extend - v. to stretch out in area or length; to continue for a longer time

extra - ad. more than normal, expected or necessary 

extreme - ad. more than the usual or accepted 

extremist - n. a person with strong religious or political beliefs who acts in an extreme or violent way