Definition of opex in English:

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Pronunciation: /ˈɒpɛks/


[mass noun] Finance
Operational expenditure: you can only cut opex so far, and most carriers are getting very close to reaching that point [as modifier]: high opex costs
More example sentences
  • Each evolving approach has its proponents, but the one that best proves it can decrease carriers' opex while increasing new service revenue will be the likely candidate for adoption.
  • "The more integrated you become, the less systems you have to deal with, and the less engineers you have to deal with," he says, stressing that his evolving software-based mentality will drive down both capex and opex.
  • The provider receives more revenue at higher profit because capex and opex are reduced through the use of more cost-effective optical Ethernet technology.


1980s: shortened form of operational expenditure.

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