The difference between Double and Twofold

Double as an adjective:

Made up of two matching or complementary elements.

Double as an adjective:

Of twice the quantity.

Double as an adjective:

Of a family relationship, related on both the maternal and paternal sides of a family.

Double as an adjective:

Designed for two users.

Double as an adjective:

Folded in two; composed of two layers.

Double as an adjective:

Stooping; bent over.

Double as an adjective:

Having two aspects; ambiguous.

Double as an adjective:

False, deceitful, or hypocritical.

Double as an adjective:

Of flowers, having more than the normal number of petals.

Double as an adjective (music):

Of an instrument, sounding an octave lower.

Double as an adjective (music):

Of time, twice as fast.

Double as an adverb:

Twice over; twofold.

Double as an adverb:

Two together; two at a time. (especially in see double)

Double as a noun:

Twice the number, amount, size, etc.

Double as a noun:

A person who resembles and stands in for another person, often for safety purposes

Double as a noun:

A drink with two portions of alcohol.

Double as a noun:

A ghostly apparition of a living person; doppelgänger.

Double as a noun:

A sharp turn, especially a return on one's own tracks.

Double as a noun:

A redundant item for which an identical item already exists.

Double as a noun (baseball):

A two-base hit.

Double as a noun (bridge):

A call that increases certain scoring points if the last preceding bid becomes the contract.

Double as a noun (billiards):

A strike in which the object ball is struck so as to make it rebound against the cushion to an opposite pocket.

Double as a noun:

A bet on two horses in different races in which any winnings from the first race are placed on the horse in the later race.

Double as a noun (darts):

The narrow outermost ring on a dartboard.

Double as a noun (darts):

A hit on this ring.

Double as a noun (dominoes):

A tile that has the same value (i.e., the same number of pips) on both sides.

Double as a noun (computing, programming):

A double-precision floating-point number.

Double as a noun (soccer):

Two competitions, usually one league and one cup, won by the same team in a single season.

Double as a noun (rowing):

A boat for two scullers.

Double as a noun (sports):

The feat of scoring twice in one game.

Double as a noun (sports, chiefly, swimming and track):

The feat of winning two events in a single meet or competition.

Double as a noun (historical):

A former French coin worth one-sixth of a sou.

Double as a noun (historical, Guernsey):

A copper coin worth one-eighth of a penny.

Double as a noun (music):

Playing the same part on two instruments, alternately.

Double as a noun (Christianity):

A double feast.

Double as a verb (transitive):

To multiply by two.

Double as a verb (transitive):

To fold over so as to make two folds.

Double as a verb:

To be the double of; to exceed by twofold; to contain or be worth twice as much as.

Double as a verb (intransitive):

To increase by 100%, to become twice as large in size.

Double as a verb (baseball):

To get a two-base hit.

Double as a verb (transitive):

(sometimes followed by up) To clench (a fist).

Double as a verb (transitive):

(often followed by together or up) To join or couple.

Double as a verb (transitive):

To repeat exactly; copy.

Double as a verb (intransitive):

(often followed by as) To play a second part or serve a second role.

Double as a verb (intransitive):

To turn sharply, following a winding course.

Double as a verb (nautical):

To sail around (a headland or other point).

Double as a verb (music):

To duplicate (a part) either in unison or at the octave above or below it.

Double as a verb (music, intransitive, usually followed by "[[on]]"):

To be capable of performing (upon an additional instrument).

Double as a verb (bridge):

To make a call that will double certain scoring points if the preceding bid becomes the contract.

Double as a verb (card games, intransitive):

To double down.

Double as a verb (billiards, snooker, pool):

To cause (a ball) to rebound from a cushion before entering the pocket.

Double as a verb (intransitive):

(followed by for) To act as substitute.

Double as a verb (intransitive):

To go or march at twice the normal speed.

Double as a verb (transitive):

To multiply the strength or effect of by two.

Double as a verb (military):

To unite, as ranks or files, so as to form one from each two.

Double as a verb (radio, informal, of a station):

To transmit simultaneously on the same channel as another station, either unintentionally or deliberately, causing interference.

Twofold as an adjective:

Double; duplicate; multiplied by two.

Twofold as an adjective:

Having two parts, especially two different parts.

Twofold as an adverb:

In a double degree; doubly.