1. clothes, cloth, clothing
clothing 服装的总称，指一件衣服用a piece of, an article of
2. incident, accident
accident指不幸的事故 He was killed in the accident.
3. amount, number
number后接可数名词 a number of students
4. family, house, home
family家庭成员. My family is a happy one.
5. sound, voice, noise
noise噪音I hate the loud noise outside.
6. photo, picture, drawing
drawing画的画 Let's go and see a good picture.
7. vocabulary, word
vocabulary词汇，一个人拥有的单词量，He has a large vocabulary.
8. population, people
population人口，人数，China has a large population.
9. weather, climate
climate长期的气候状况 The climate here is not good for you.
10. road, street, path, way
take this road; in the street, show me the way to the museum.
11. course, subject
subject科目(具体的学科)a summer course
12. custom, habit
custom传统风俗，习俗，也可指生活习惯，后接to do，
habit生活习惯，习惯成自然，后接of doing. I've got the habit of drinking a lot.
13. cause, reason
cause 指造成某一事实或现象的直接原因，后接of sth./doing sth，
reason用来解释某种现象或结果的理由，后接for sth./doing sth. the reason for being late
14. exercise, exercises, practice
exercises练习(可数)，practice(反复做的)练习 Practice makes perfect.
