As adjectives the difference between pious and faithful

is that pious is of or pertaining to piety, exhibiting piety, devout, godfearing while faithful is loyal; adhering firmly to person or cause.

As a noun faithful is

the practicing members of a religion or followers of a cause.

Nail is a synonym of fasten.

As nouns the difference between nail and fasten

is that nail is the thin, horny plate at the ends of fingers and toes on humans and some other animals while fasten is .

As a verb nail

is to fix (an object) to another object using a nail.

Allure is a related term of cajolery.

As nouns the difference between allure and cajolery

is that allure is affectation while cajolery is cajolement.

Jocund is a related term of droll.

As adjectives the difference between jocund and droll

is that jocund is jovial; exuberant; lighthearted; merry and in high spirits; exhibiting happiness while droll is oddly humorous; whimsical, amusing in a quaint way; waggish.

As a noun droll is

(archaic) a buffoon.

As a verb droll is

(archaic) to joke, to jest.

Lighthearted is a related term of gratifying.

As an adjective lighthearted

is joyful, glad, taking pleasure in being alive not depressed or sad.

As a verb gratifying is

.

Category is a related term of stamp.

As nouns the difference between category and stamp

is that category is a group, often named or numbered, to which items are assigned based on similarity or defined criteria while stamp is an act of stamping the foot, paw or hoof.

As a verb stamp is

to step quickly and heavily, once or repeatedly.

Hash is a related term of commixture.

As nouns the difference between hash and commixture

is that hash is food]], especially meat and potatoes, chopped and mixed together or hash can be hashish, a drug derived from the cannabis plant while commixture is the act or state of being mixed together; a union or mingling of constituents.

As an adjective hash

is hashed, chopped into small pieces.

As a verb hash

is to chop into small pieces, to make into a hash.

As adjectives the difference between substantial and tubby

is that substantial is having to substance; actually existing; real; as, substantial life while tubby is stout, rotund.

As nouns the difference between substantial and tubby

is that substantial is anything having substance; an essential part while tubby is an overweight person.

Federation is a related term of unit.

As a noun federation

is federation.

As a verb unit is

.

Tart is a related term of unceremonious.

As adjectives the difference between tart and unceremonious

is that tart is sharp to the taste; acid; sour while unceremonious is not ceremonious.

As a noun tart

is a type of small open pie, or piece of pastry, containing jelly or conserve; a sort of fruit pie or tart can be (british|slang) a prostitute.

As a verb tart

is to practice prostitution.