Definition of conversion in English:

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Pronunciation: /kənˈvərZHən/


1The act or an instance of converting or the process of being converted: the conversion of food into body tissues
More example sentences
  • The expenditure during the quarter ended June 2002 includes costs incurred towards the process of conversion of the company into a commercial bank.
  • The exhibits explaining the process of bio energy conversion with sewage water would have been music to the ears of die-hard environmentalists.
  • The characteristics of the transformed films and of the process by which conversion occurs challenge current models of the stable surfactant film.
change, changing, transformation, metamorphosis, transfiguration, transmutation, sea change
humorous transmogrification
1.1The fact of changing one’s religion or beliefs or the action of persuading someone else to change theirs: my conversion to the Catholic faith
More example sentences
  • The most fundamental religious experience of Newman's life was his adolescent conversion to evangelical religion.
  • A conversion from one religion to another may also help one overcome ambivalence; the imagery used for God may differ from that used in childhood.
  • Unlike Buddhism, Jainism did not advocate conversion to its religion and it did not spread outside the country.
rebirth, regeneration, reformation
1.2 Christian Theology Repentance and change to a godly life.
Example sentences
  • The literary masterpiece Barrow draws on to illumine the path of conversion and repentance is Dante's Purgatorio.
  • Saturday morning I lectured for another three hours on conversion and repentance.
  • The monastery, that is to say, is a place of continual repentance, of constantly renewed conversion.
1.3The adaptation of a building for a new purpose: the conversion of a house into apartments
More example sentences
  • The policy also includes new property developments in existing buildings such as barn conversions.
  • Now almost all new homes, including barn conversions, will only receive planning approval if they are sold at below market prices to local people with genuine housing needs.
  • They include conversions at Victorian buildings including Silens Mill, in Little Germany, and Ivegate House, near City Hall.
1.4British A building or part of a building that has been adapted in this way.
Example sentences
  • Apart from minor rebuilding necessary for conversion, the buildings will retain their present appearance.
  • The new scheme involves building 18 new homes on the site plus a partial demolition of the public house buildings and conversion of the rest into four flats.
  • Having looked at the project in detail however, I have come to the conclusion that conversion of the building to a shopping centre is not a viable option on a stand alone basis.
adaptation, alteration, modification, reconstruction, rebuilding, redevelopment, redesign, renovation, rehabilitation
1.5 Law The changing of real into personal property, or of joint into separate property, or vice versa.
Example sentences
  • It was held that the plaintiffs could successfully maintain an action in conversion against the defendant as they still enjoyed the general property in the car.
  • They may be interests in property, as in actions for trespass and conversion; or interests in unimpaired relations with others, as in causing injury or death to relatives.
  • A fortunate few have previously negotiated conversion from lease to proper title with the former laird for just the cost of the legal expenses.
1.6 Psychiatry The manifestation of a mental disturbance as a physical disorder or disease: [as modifier]: conversion disorders
More example sentences
  • But hysteria lives on today in a different guise - conversion disorder.
  • It was concluded that the present results provide evidence of a relationship between childhood traumatization and conversion disorder.
  • What she did have was a form of conversion disorder.
1.7 Logic The transposition of the subject and predicate of a proposition according to certain rules to form a new proposition by inference.
Example sentences
  • The operations of conversion, obversion, and contraposition are applied to categorical propositions to yield new categorical propositions - these can become immediate arguments.
  • This is a known transformation in logic, and is called conversion by contraposition, or negative conversion.
2 American Football The act of scoring an extra point or points after having scored a touchdown.
Example sentences
  • If this monotonous mess doesn't end after two overtimes, teams are forced to go for two points on touchdown conversions.
  • The colleges introduced two-point conversions in 1957.
  • He bagged two touchdowns, four conversions and a penalty.
2.1The act of gaining a first down.
Example sentences
  • They also were fifth in fewest third-down conversions allowed and second in fewest first-downs allowed.
  • All three of Williams' catches against the Chiefs were good for first-down conversions on third down.
  • The Irish were 0-for-13 on third-down conversions and managed just four first downs.
3 (also conversion rate) (In the context of online marketing) the proportion of people viewing an advertisement and going on to buy the product, click on a link, etc. you’ll see better conversion rates for your local advertising if you include your physical address on your website keeping things simple will improve conversion
More example sentences
  • If you improve conversion by 1% you will make $400 a month.
  • Online businesses continue to focus heavily on customer acquisition marketing, but by redirecting the same level of investment into improving conversion performance, organisations stand to see far greater returns.
  • Any advertiser who is interested in increasing conversions on their website will find Website Optimizer useful.
4 Law The action of wrongfully dealing with goods in a manner inconsistent with the owner’s rights: he was found guilty of the fraudulent conversion of clients' monies
More example sentences
  • The legislation will simplify the law on larceny, fraudulent conversion, forgery and embezzlement.
  • After two years on remand, he pleads guilty to charges of fraudulent conversion of clients' funds and is sentenced to five years in jail less remission for good behaviour and the time he has already spent awaiting trial.
  • He faces 47 charges of false pretences, forgery and fraudulent conversion between 1995 and April 2001.
5 Physics The change in a quantity’s numerical value as a result of using a different unit of measurement.
Example sentences
  • Such a range can hardly be attributed to mistakes in the conversion of measurement units.
  • Then, assuming you are expected to give the answer in m/s, your next line would be a unit conversion.
  • Even units conversion and local coordinate systems can play small parts in reducing the accuracy of the geometry.


Middle English (in the sense 'turning of sinners to God'): via Old French from Latin conversio(n-), from convers- 'turned around', from the verb convertere (see convert).

Words that rhyme with conversion

animadversion, aspersion, assertion, aversion, bioconversion, Cistercian, coercion, desertion, disconcertion, dispersion, diversion, emersion, excursion, exertion, extroversion, immersion, incursion, insertion, interspersion, introversion, Persian, perversion, submersion, subversion, tertian, version

For editors and proofreaders

Syllabification: con·ver·sion

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