As verbs the difference between cancell and revoke

is that cancell is obsolete spelling of lang=en while revoke is to cancel or invalidate by withdrawing or reversing.

As a noun revoke is

the act of revoking in a game of cards.

As an initialism fact

is federation against copyright theft.

As a noun product is

a commodity offered for sale.

As a verb restrain is

  to control or keep in check.

As a noun corbel is

(architecture) a structural member jutting out of a wall to carry a superincumbent weight.

As a verb corbel is

to furnish with a corbel or corbels; to support by a corbel; to make in the form of a corbel.

As a noun pedophobia is

an irrational, obsessive fear, anxiety, or hatred of children.

As a noun diligence

is conscientiousness or determination or perseverance when doing something.

As an adjective industrious is

hard-working and persistent; worksome.

As nouns the difference between catagory and group

is that catagory is while group is a number of things or persons being in some relation to one another.

As a verb group is

to put together to form a group.

As nouns the difference between catagory and element

is that catagory is while element is element (part of a whole).

As an adjective diploid is

diploid (of a cell, having a pair of each type of chromosome).

As nouns the difference between element and group

is that element is element (part of a whole) while group is a number of things or persons being in some relation to one another.

As a verb group is

to put together to form a group.