As adjectives the difference between doubtfull and redoubtable

is that doubtfull is archaic form of doubtful while redoubtable is eliciting respect or fear; imposing; awe-inspiring.

As verbs the difference between control and operate

is that control is to exercise influence over; to suggest or dictate the behavior of while operate is to perform a work or labour; to exert power or strength, physical or mechanical; to act.

As a noun control

is influence or authority over.

As nouns the difference between rooster and prostitute

is that rooster is a male of any species of gallinaceous bird. Typically refers to the domestic chicken, species: Gallus gallus domesticus while prostitute is a person who performs sexual activity for payment, especially a woman.

As a verb prostitute is

to perform sexual activity for money.

In obsolete terms the difference between promise and secret

is that promise is bestowal or fulfillment of what is promised while secret is separate; distinct.

In transitive terms the difference between promise and secret

is that promise is to commit to something or action; to make an oath; make a vow while secret is to make or keep secret.

As an adjective secret is

being or kept hidden.

As nouns the difference between justice and wisdom

is that justice is the state or characteristic of being just or fair while wisdom is an element of personal character that enables one to distinguish the wise from the unwise.

As proper nouns the difference between justice and wisdom

is that justice is {{surname|A=An occupational|from=occupations} while Wisdom is the Wisdom of Solomon, a book of the Old Testament and the Hebrew Tanakh.

As a proper noun wisdom is

(biblical) the wisdom of solomon, a book of the old testament and the hebrew tanakh.

As adjectives the difference between wistful and regretful

is that wistful is full of yearning or longing while regretful is full of feelings of regret, indulging in regrets.

Unit is a synonym of flat.

As adjectives the difference between flat and unit

is that flat is having no variations in height while unit is for each unit.

As nouns the difference between flat and unit

is that flat is an area of level ground while unit is a standard measure of a quantity.

As an adverb flat

is so as to be flat.

As a verb flat

is to make a flat call; to call without raising.

Ethnicity is a synonym of clan.

As nouns the difference between clan and ethnicity

is that clan is a group of people all descended from a common ancestor, in fact or belief while ethnicity is the common characteristics of a group of people.

Race is a synonym of clan.

As nouns the difference between clan and race

is that clan is a group of people all descended from a common ancestor, in fact or belief while race is a contest between people, animals, vehicles, etc. where the goal is to be the first to reach some objective. Several horses run in a horse race, and the first one to reach the finishing post wins.

As a verb race is

to take part in a race (in the sense of a contest).