Collins English-English Dictionary

conversion [kən'v3ːʃən]

1. 1. n a change or adaptation in form, character, or function

2. 2. n something changed in one of these respects

3. 3. n a change to another attitude or belief, as in a change of religion

4. 4. n [maths] a change in the units or form of a number or expression

   the conversion of miles to kilometres involves multiplying by 1.61

5. 5. n [logic] a form of inference by which one proposition is obtained as the converse of another proposition

6. 6. n [law] unauthorized dealing with or the assumption of rights of ownership to another's personal property

7. 7. n the changing of real property into personalty or personalty into realty

8. 8. n [rugby] a score made after a try by kicking the ball over the crossbar from a place kick

9. 9. n [Physics] a change of fertile material to fissile material in a reactor

10. 10. n an alteration to a car engine to improve its performance

11. 11. n (as modifier)

    a conversion kit

12. 12. n material alteration to the structure or fittings of a building undergoing a change in function or legal status

13. 13. n [NZ] the unauthorized appropriation of a motor vehicle

14. 14. n [Etymology] C14: from Latin conversio a turning around; see convert