Example : A large city.
Set out for the big city.
A large sum.
A big (or large) barn.
A large family.
Big businesses.
A big expenditure.
A large number of newspapers.
A big group of scientists.
Large areas of the world.

Synonyms : large

Example : Graduation was a big day in his life.

Example : A bad headache.
In a big rage.
Had a big (or bad) shock.
A bad earthquake.
A bad storm.

Synonyms : bad

Example : A big voice.
Big bold piano sounds.

Example : A big figure in the movement.
Big man on campus.
He's very large in financial circles.
A prominent citizen.

Synonyms : large, prominent

Example : Big spender.
Big eater.
Heavy investor.

Synonyms : heavy

Example : Big talk.

Synonyms : boastful, braggart, bragging, braggy, cock-a-hoop, crowing, self-aggrandising, self-aggrandizing

Example : Too big for his britches.
Had a swelled head.
He was swelled with pride.

Synonyms : swelled, vainglorious

Example : An adult animal.
A grown woman.

Synonyms : adult, full-grown, fully grown, grown, grownup

Example : A big wind.

Example : A heart big enough to hold no grudges.
That's very big of you to be so forgiving.
A large and generous spirit.
A large heart.
Magnanimous toward his enemies.

Synonyms : large, magnanimous

Example : Was a big tipper.
The bounteous goodness of God.
Bountiful compliments.
A freehanded host.
A handsome allowance.
Saturday's child is loving and giving.
A liberal backer of the arts.
A munificent gift.
Her fond and openhanded grandfather.

Synonyms : bighearted, bounteous, bountiful, freehanded, giving, handsome, liberal, openhanded

Example : Was big with child.
Was great with child.

Synonyms : enceinte, expectant, gravid, great, heavy, large, with child

Example : His performance went over big.

Example : He talked big all evening.

Synonyms : boastfully, large, vauntingly

Example : Think big.

Example : The play failed big at the box office.