As nouns the difference between illiteracy and unletteredness

is that illiteracy is (uncountable) the inability to read while unletteredness is the state or condition of being unlettered; illiteracy.

As nouns the difference between tumour and retrocession

is that tumour is (oncology|pathology) an abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia while retrocession is retrocession.

As a verb surface

is .

As a noun retrocession is

retrocession.

As nouns the difference between interior and retrocession

is that interior is the inside of a building, container, cavern, or other enclosed structure while retrocession is retrocession.

As an adjective interior

is within any limits, enclosure, or substance; inside; internal; inner.

As nouns the difference between body and retrocession

is that body is physical frame while retrocession is the transfer of risk from one reinsurer to another.

As a verb body

is to give body or shape to something.

As a noun teacher

is a person who teaches, especially one employed in a school.

As an adjective teacherless is

without a teacher.

As nouns the difference between risk and retrocession

is that risk is a possible, usually negative, outcome, eg, a danger while retrocession is retrocession.

As a verb risk

is to incur risk (to something).

As nouns the difference between reinsurer and retrocession

is that reinsurer is a provider of reinsurance while retrocession is the transfer of risk from one reinsurer to another.

As nouns the difference between land and retrocession

is that land is loin (the flesh above the hip bone) while retrocession is retrocession.

As nouns the difference between cede and retrocession

is that cede is cd (compact disk) while retrocession is retrocession.