Difference between Gargantuan and Big

GARGANTUAN vs BIG: NOUN

Barley, especially the hardy four-rowed kind.
A kind of winter barley cultivated in northern Europe, especially in Scotland; properly, four-rowed barley, Hordeum vulgare, inferior to but hardier than H. hexastichon, of which it is sometimes called a variety. See bear.

Of great mass; huge and bulky
Characteristic of Gargantua, a gigantic, wonderful personage; enormous; prodigious; inordinate.
Of the giant Gargantua or his appetite.
Huge; immense; tremendous.
Of a tremendous size, volume, degree, etc.
Of exceedingly great scope or nature.
Of immense size, extent, or quantity. : enormous.

Exhibiting self-importance
Very intense
Of considerable size, number, quantity, magnitude, or extent; large. : large.
Having great strength or force.
(of animals) fully developed
Above average in size or number or quantity or magnitude or extent
Generous and understanding and tolerant
Filled up; brimming over.
Of great significance; momentous.
Mature or grown-up.
Older or eldest. Used especially of a sibling.
Given or giving freely
Conspicuous in position or importance
Of very great significance
Feeling self-importance
Loud and firm
Significant
Marked by intense physical force
Well-endowed, possessing large breasts in the case of a woman or a large penis in the case of a man.
Mature, conscientious, principled.
Enthusiastic (about).
Important or significant.
Fat.
Adult.
Popular.
Thought to have undue influence.
Of great size, large.
To talk loudly, arrogantly, or pretentiously.
Having greatness, fullness, importance, inflation, distention, etc., whether in a good or a bad sense. As applied to looks, it indicates haughtiness or pride.
Great with young; pregnant; swelling; ready to give birth or produce; -- often figuratively.
Having largeness of size; of much bulk or magnitude; of great size; large.
Pregnant.
Having or exercising considerable authority, control, or influence.
Conspicuous in position, wealth, or importance; prominent.
Loud and firm; resounding.
Widely liked, used, or practiced; popular.
Self-important; cocky.
Bountiful; generous.

Pertaining to or characteristic of Gargantua (see etymology); hence, great beyond credibility; enormous; prodigious; Brobdingnagian.
Huge and bulky
Of great mass

. To inhabit; occupy.
2. Reflexively, to locate one's self.
3. To build; erect; fashion.
To dwell; have a dwelling.
Of great strength or power.
Having great size; large in bulk or magnitude, absolutely or relatively.
Great with young; pregnant; ready to give birth; hence, figuratively, full of something important; ready to produce; teeming.
. Distended; full, as of grief, passion, courage, determination, goodness, etc.
. Tumid; inflated, as with pride; hence, haughty in air or mien, or indicating haughtiness; pompous; proud; boastful: as, big looks; big words.
. Great as regards influence, standing, wealth, etc.
Synonyms Large, etc. (see great), bulky, huge, massive.
5. Lofty, pompous, arrogant, important.
Prodigious
In an advanced stage of pregnancy
Serious or severe
(idiom) (big on) Enthusiastic about; partial to.

Ginormous, Mammoth, Monstrous, Colossal, Humongous, Vast, Enormous, Huge, Massive, Gigantic, Jumbo, Big, Giant, Large, Elephantine

Enormous, Monumental, Larger, Gargantuan, Tremendous, Significant, Sizeable, Colossal, Sizable, Great, Massive, Large, Humongous, Gigantic, Huge

Ginormous, Mammoth, Monstrous, Colossal, Humongous, Vast, Enormous, Huge, Massive, Gigantic, Jumbo, Big, Giant, Large, Elephantine

Enormous, Monumental, Larger, Gargantuan, Tremendous, Significant, Sizeable, Colossal, Sizable, Great, Massive, Large, Humongous, Gigantic, Huge

Now we have entered big money, how do we make BIG money.
An art portfolio is big factor big factor considered during a client presentation or a work application.
Having skipped the actual text of the last century for the headlines alone, they fear big business but not big government.
One of the big benefits for managers and admins is to have visibility and insights into big people data.
Big data: Hadoop, Business Analytics and Beyond, A Big data Manifesto from the Wikibon Community.
Buttery hot spots from you for big green egg chicken wings direct heat, slather on big of a long.
Articles are working to do with big green egg ceramic smoker or big wings, famous and get.
Everyone would make a big profit in the short term and get paid big bonuses.
Does anyone know a nice BIG button BIG screen phone that I can use here?
Be a developer in big company, you will use spaces, and get big salary.