Longman Dictionary of Contemporary English homepage

Date: 1200-1300
Language: Old French
Origin: convertir, from Latin convertere 'to turn around, convert', from com- ( COM-) + vertere 'to turn'

convert

1 verb
     
con‧vert1 W3
1
a) [transitive] to change something into a different form of thing, or to change something so that it can be used for a different purpose or in a different way
convert something to/into something
They converted the spare bedroom into an office.
The stocks can be easily converted to cash.
a 19th century converted barn (=barn changed into a house)
b) [intransitive] to change into a different form of thing, or change into something that can be used for a different purpose or in a different way
convert to/into
a sofa that converts into a bed
In the process, the light energy converts to heat energy.
2
a) [transitive] to persuade someone to change to a different religion
convert somebody to something
European missionaries converted thousands to Christianity.
b) [intransitive] to change to a different religion
convert to
She converted to Catholicism.
3
a) [intransitive] to change to a different set of ideas, principles, or ways of doing something
convert to
people who have recently converted to vegetarianism
b) [transitive] to persuade someone to change to a different set of ideas, principles, or ways of doing something
convert somebody to something
She succeeded in converting me to her point of view.
newly/freshly converted
newly converted feminists
4 [intransitive and transitive] to make a conversion in rugby or American football

➔ preach to the converted

at preach (4)

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