Antonym: subtraction. Similar words: in addition, additional, in addition to, edition, condition, tradition, expedition, conditions. Meaning: [ə'dɪʃn] 
n. 1. a component that is added to something to improve it 2. the act of adding one thing to another 3. a quantity that is added 4. something added to what you already have 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.
n. 1. a component that is added to something to improve it 2. the act of adding one thing to another 3. a quantity that is added 4. something added to what you already have 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. 
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31, A secretary would be a welcome/useful addition to our staff.
32, In addition, interest on Treasury issues isn'tsubject to state and local income taxes.
33, She can do addition, but she hasn't learned subtraction yet.
34, In addition to a competitive salary, the company offers attractive employee benefits.
35, The test involves simple calculations, such as addition and subtraction.
36, Students choose from optional subjects in addition to the core curriculum.
37, It was completely refurbished in 1987, with the addition of a picnic site.
38, A major addition to the earlier revisions of the questionnaire is the job requirement exercise.
39, Ann will be a very useful addition to our team.
40, This is a fine book; a worthy addition to the Cambridge Encyclopedia series.
41, The freighter carries a few passengers in addition to its cargo.
42, This excellent book will be a welcome addition to the library of any student.
43, You will, in addition, pay to the Bank any losses, costs, expenses or legal fees .
44, The plus sign is used in addition and the minus is used in subtraction.
45, The film star has an incredible car in addition to a large house.
46, In addition to these arrangements, extra ambulances will be on duty until midnight.
47, Some dentists are convinced that the addition of fluoride in water is ineffective as a prophylactic treatment.
48, They built a big addition onto the back of the house.
49, In addition to my weekly wage, I got a lot of tips.
50, In addition to his movie work, Redford is known as a champion of environmental causes.
50, Sentencedict.com is a online sentence dictionary, on which you can find excellent sentences for a large number of words.
51, There's a postage and packing fee in addition to the repair charge.
52, In addition to his flat in London, he has a villa in Italy and a castle in Scotland.
53, Sit here beside me. Besides means 'in addition to something':What other sports do you play besides hockey? Do not use beside with this meaning.
54, This addition may interfere with the symmetry of the building.
55, In addition to giving a general introduction to computers, the course also provides practical experience.
56, Turn sparkling wine into Buck's Fizz with the addition of chilled orange juice.
57, In addition to gene, intelligence also depends on an adequate diet, a good education and a decent home environment.
58, In addition to natural rivers, the Chinese working people have dug many canals.
59, I wrote feature stories, in addition to editorials.
60, In addition, affective experiences and feelings are now conserved.
More similar words: in addition, additional, in addition to, edition, condition, tradition, expedition, conditions, traditional, traditionally, position, munitions, coalition, composition, exhibition, opposition, definition, transition, acquisition, recognition, practitioner, add in, ambitious, notion, nation, action, option, motion, portion, question.