opex

As an acronym opex

is (business|finance) operating expense or operating expenditure; the continuing costs of a business, in contrast to capital expenditure.

As an adjective undefined is

lacking a definition or value.

As a noun apex

is the highest point of something.

As an acronym OPEX is

operating expense or operating expenditure; the continuing costs of a business, in contrast to capital expenditure.

is likely misspelled.

has no English definition.

As an acronym OPEX

is operating expense or operating expenditure; the continuing costs of a business, in contrast to capital expenditure.