The difference between Twin and Twofold

When used as adjectives, twin means double, whereas twofold means double.

Twin is also noun with the meaning: either of two people (or, less commonly, animals) who shared the same uterus at the same time.

Twin is also verb with the meaning: to separate, divide.

Twofold is also adverb with the meaning: in a double degree.

check bellow for the other definitions of Twin and Twofold

Twin as a noun:

Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.
Twin as a noun:

Either of two similar or closely related objects, entities etc.
Twin as a noun:

A room in a hotel, guesthouse, etc. with two beds; a twin room.
Twin as a noun (US):

A twin size mattress or a bed designed for such a mattress.
Twin as a noun (crystallography):

A twin crystal.

Twin as a verb (transitive, obsolete, outside, Scotland):

To separate, divide.
Twin as a verb (intransitive, obsolete, outside, Scotland):

To split, part; to go away, depart.
Twin as a verb (usually in the [[passive]]):

To join, unite; to form links between (now especially of two places in different countries).

Examples:

"Placetown in England is twinned with Machinville in France."

"Coventry twinned with Dresden as an act of peace and reconciliation, both cities having been heavily bombed during the war."
Twin as a verb (intransitive):

To be paired or suited.
Twin as a verb (intransitive):

To give birth to twins.
Twin as a verb (intransitive, obsolete):

To be born at the same birth.

Examples:

"rfquotek Shakespeare"

Twin as an adjective:

double; dual; occurring as a matching pair

Examples:

"twin beds'', ''twin socks"
Twin as an adjective:

forming a pair of twins.

Examples:

"the twin boys"

Twofold as an adjective:

Double; duplicate; multiplied by two.

Examples:

"The wheat produced a twofold harvest."
Twofold as an adjective:

Having two parts, especially two different parts.

Examples:

"a twofold nature; a twofold sense; a twofold argument"