deallocate

In lang=en terms the difference between retain and deallocate

is that retain is to hold secure while deallocate is to remove from the set of resources put aside for (allocated to) a particular user or purpose.

As verbs the difference between retain and deallocate

is that retain is to keep in possession or use while deallocate is to remove from the set of resources put aside for (allocated to) a particular user or purpose.

As verbs the difference between deallocate and vacate

is that deallocate is to remove from the set of resources put aside for (allocated to) a particular user or purpose while vacate is to move out of a dwelling, either by choice or by eviction.

As an adjective unallocated

is that which has not yet been allocated.

As a verb deallocate is

to remove from the set of resources put aside for (allocated to) a particular user or purpose.

Unallocate is likely misspelled.

Unallocate has no English definition.

As a verb deallocate is

to remove from the set of resources put aside for (allocated to) a particular user or purpose.

As verbs the difference between deallocated and deallocate

is that deallocated is (deallocate) while deallocate is to remove from the set of resources put aside for (allocated to) a particular user or purpose.

As verbs the difference between reallocate and deallocate

is that reallocate is to change the user or purpose for which a resource is allocated while deallocate is to remove from the set of resources put aside for (allocated to) a particular user or purpose.