addition
英 [ə'dɪʃ(ə)n]
美[ə'dɪʃən]
	    - n. 添加;[数] 加法;增加物
 
英英释意
- 1. a component that is added to something to improve it;
 - "the addition of a bathroom was a major improvement"
 - "the addition of cinammon improved the flavor"
 
- 2. the act of adding one thing to another;
 - "the addition of flowers created a pleasing effect"
 - "the addition of a leap day every four years"
 
- 3. a quantity that is added;
 - "there was an addition to property taxes this year"
 - "they recorded the cattle's gain in weight over a period of weeks"
 
- 4. something added to what you already have;
 - "the librarian shelved the new accessions"
 - "he was a new addition to the staff"
 
- 5. a suburban area laid out in streets and lots for a future residential area
 
- 6. the arithmetic operation of summing; calculating the sum of two or more numbers;
 - "the summation of four and three gives seven"
 - "four plus three equals seven"