Reallocates vs Deallocates - What's the difference?

As verbs the difference between reallocates and deallocates

is that reallocates is (reallocate) while deallocates is (deallocate).

(head)

(reallocate)

To change the user or purpose for which a resource is allocated.

:I want to reallocate some of my money from stocks to bonds. (I want to sell some of my stocks and use the proceeds to buy bonds to replace them.)

To allocate again.

:[Appending items one at a time is] still a better deal than concatenation, which reallocates every time.

(head)

(deallocate)

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

Empty out your locker; it will be deallocated at the end of the day.

Computer programs should deallocate memory they no longer need, releasing it back to the system.