Learn British English/ American English.

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17. American   English               British English

1. Counter clockwise                Anticlockwise
2. Crib                                       cot 
3. French fries                          chips  

1. Clipping                                cutting from a newspaper
2. Hood                                      bonnet
3. Trunk                                    Boot of a car
4. Window shade                      Blind
5. Garbage can/trash can        dustbin
6. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
7. Guy                                        Fellow
8. Jelly                                       Jam
9. Freight train                        Goods train
10. Fire department                  Fire brigade
11. Intermission                         Interval(cinema)
12. Pitcher                                 Jug
13. Raise                                    rise in salary
14. Sales clerk                           shop assistant
15. One way                              single ticket
16. Flash light                            torch light
17. Sink                                      Wash basin
18. Wind shield                          Wind screen
19. Witness stand                       witness box
20. Zee                                        Zed.
21. oooooooooooooooooooooooooooooooooooooooooooo
22. What is abbreviation?
23. is the shortening of the words  by any method.
24. Example.Account  A/c Air-conditioner  A.C.
25. Bachelor of arts. B. A; street. St.
26. What is a contraction? 
27. it is made  by omitting certain letters  and bringing together
28. the first and last letters .
29. examples : Doctor.Dr., cannot can't  they are they're
30. What is acronym?
31. Word formed with the first letters of the words or phrase.
32. Ex. RADAR/UNESCO
33. AIR- All India Radio
34. LAN- Local Area Network.
35. ROM- Read Only Memory.
36. RAM- Random Only Memory
37. TANSI- Tamil Nadu Small Scale Industries.
38. TAFE- Tractor  And Farm Equipment.

1. http://www.grammar-monster.com/glossary/contractions.htm  
2. http://examples.yourdictionary.com/examples-of-acronyms.html

1. NEWS -North East West South
2. UFO-Unidentified Flying Object.
3. UNO- United Nations Organisation
4. UNESCO- United nations Educational ,Scientific  and Cultural Organisation.
5. OPEC- Organisation of Petroleum Exporting Countries.
6. C.A. Chartered Accountant.
7. UAE- United Arab Emirates.
8. VAT -Value Added Tax
9. NGO- Non-Governmental Organisation
10. CAT- Common Admission Test
11. oooooooooooooooooooooooooooooooooooooooo