con ‧ ver ‧ sion AC /kənˈvɜːʃ ə n $ -ˈvɜːrʒ ə n/ BrE AmE noun [uncountable and countable]
[ Date: 1300-1400 ; Language: Old French ; Origin: Latin conversio , from convertere ; ⇨ ↑ convert 1 ]
1 . when you change something from one form, purpose, or system to a different one
conversion into
The warehouse was undergoing conversion into apartments.
conversion of
the conversion of waste into usable products
conversion to
The British conversion to the metric system took place in the 1970s.
house/barn/loft etc conversion British English (=when you change the use of a house, barn etc, so that it becomes apartments, a house, a room etc)
2 . when someone changes from one religion or belief to a different one
conversion to
a conversion to vegetarianism
conversion from
Newman’s conversion from Anglicanism to Catholicism
3 . a way of scoring extra points in ↑ rugby or ↑ American football