Definition of mutualize in US English:

mutualize

verb

[with object]
  • 1Organize (a company or business) on mutual principles.

    • ‘He has already supported calls for a rethink of the ownership of Scottish Water and said it should be mutualised.’
    • ‘This should go down a bomb with the suits, along with his other suggestion that auditors should be mutualised, and take on a not-for-profit for true independence.’
    1. 1.1 Divide (something, especially insurance losses) between involved parties.
      • ‘They are interested in the ways in which income is mutualized in individual households.’

Pronunciation

mutualize

/ˈmyo͞oCHəwəˌlīz/