a. The act of converting.
b. The state of being converted.
2. A change in which one adopts a new religion, faith, or belief.
3. Something that is changed from one use, function, or purpose to another.
4. Law The unlawful appropriation of another's property.
5. The exchange of one type of security or currency for another.
6. Logic The interchange of the subject and predicate of a proposition.
7. Football An extra point or points scored after a touchdown, as by kicking the ball through the uprights or by advancing the ball into the end zone from the two-yard line or a similar short distance.
8. Psychiatry The development of physical symptoms, such as paralysis or sensory deficits, as a response to stress, conflict, or trauma.
9. The expression of a quantity in alternative units, as of length or weight.
[Middle English conversioun, religious conversion, from Old French conversion, from Latin conversiō, conversiōn-, a turning around, from conversus, past participle of convertere, to turn around; see CONVERT.]
con·version·al, con·version·ar′y (-zhə-nĕr′ē, -shə-) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.