Definitions for onewʌn

Random House Webster's College Dictionary

one^*wʌn(adj.)

being or amounting to a single unit or individual or entire thing:
one child; one piece of cake.
being an individual instance or member of a number, kind, or group indicated:
one member of the party.
existing, acting, or considered as a single unit or entity.
of the same or having a single kind, nature, or condition:
of one mind.
denoting an unspecified day or time:
one evening last week.
denoting some indefinite day or time in the future:
You'll see him one day.
a certain (used in naming a person otherwise unknown or not described):
One John Smith was chosen.
being a particular, unique, or only individual, item, or unit:
the one person I can trust.
of no consequence as to the character, outcome, etc.; the same:
It's all one to me.
a or an (used with intensifying force):
That is one smart dog.
(n.)the first and lowest whole number, being a cardinal number; unity.
a symbol of this number, as 1 or I.
a single person or thing:
one at a time.
a one-dollar bill.
Category: Common Vocabulary
(pron.)a person or thing of a number or kind indicated or understood:
one of the Elizabethan poets.
a person or a personified being:
the evil one.
any person or thing indefinitely; anyone or anything:
as good as one could desire.
something or someone of the kind just mentioned:
The portraits are good ones.
Chiefly Brit. (used as a substitute for the pronoun I):
Mother had been ill, and one should have realized it.
Category: Common Vocabulary, Function Word, British

Idioms for one:

as one (man), with complete accord; unanimously: in unison.
They voted as one.
Category: Idiom
at one, united in thought or feeling; attuned:
to feel at one with the world.
Category: Idiom
for one, as an illustrative instance; for example:
I, for one, refuse to go along.
Category: Idiom
one and all, everyone.
Category: Idiom
one by one, singly and successively.
Category: Idiom

^* Usage: one meaning “any person indefinitely” is more formal than you , in the same sense: One (or you) should never give up hope. When the pronoun must be repeated, either one or a personal pronoun is used; the latter is more common in the U.S.: Wherever one looks, he or she finds industrial pollution. In speech or informal writing, a form of they often occurs: Can one read this without thinking of their own childhood? In the construction one of those who (or that or which), the antecedent of who is considered to be the plural form, correctly followed by a plural verb: one of those people who find fault. Yet so strong is the feeling for one as antecedent that a singular verb is commonly found in all types of writing: one of those people who finds fault. When one is preceded by only in such a construction, the singular verb is called for: the only one of her sons who visits her. See also he1, they.

Origin of one:

bef. 900; ME oon, OE ān; c. OFris ān, ēn, OHG, G ein, ON einn, L unus one, Gk oínē ace on a die

-one

a suffix used in the names of ketones and analogous chemical compounds:
lactone; quinone.
Category: Affix

Origin of -one:

perh. < Gk -ōnē fem. patronymic

Princeton's WordNet

one, 1, I, ace, single, unity(noun)
the smallest whole number or a numeral representing this number
"he has the one but will need a two and three to go with it"; "they had lunch at one"
one(adj)
a single person or thing
"he is the best one"; "this is the one I ordered"
one, 1, i, ane(adj)
used of a single unit or thing; not two or more
"`ane' is Scottish"
one(a), unitary(adj)
having the indivisible character of a unit
"a unitary action"; "spoke with one voice"
one(a)(adj)
of the same kind or quality
"two animals of one species"
one(a)(adj)
used informally as an intensifier
"that is one fine dog"
one(a)(adj)
indefinite in time or position
"he will come one day"; "one place or another"
one(adj)
being a single entity made by combining separate components
"three chemicals combining into one solution"
matchless, nonpareil, one(a), one and only(a), peerless, unmatched, unmatchable, unrivaled, unrivalled(adj)
eminent beyond or above comparison
"matchless beauty"; "the team's nonpareil center fielder"; "she's one girl in a million"; "the one and only Muhammad Ali"; "a peerless scholar"; "infamy unmatched in the Western world"; "wrote with unmatchable clarity"; "unrivaled mastery of her art"

Kernerman English Learner's Dictionary

one(number)ʌn
the number 1
One, two, three ...
one(determiner)ʌn
indicates a particular person or thing
One solution is to invite all of them.; One of my friends had a car accident last weekend.
oneʌn
indicates a particular time
We should go out for a drink one night.; I was bored one day and decided I needed to travel.
oneʌn
only
Women are his one weakness.; The weather is the one thing I don't like about living here.
oneʌn
emphasizes an adjective
That's one beautiful horse.
oneʌn
no more than one at the same time
Place them carefully in the box one at a time.
oneʌn
separately, one after the other
One by one they left the room.
one(pronoun)ʌn
indicates a particular person or thing that has been mentioned
I'm getting an ice cream cone. Do you want one?; There are so many people. Which one is he?; How can they afford it? They're the ones with no money.; You're the one who told everybody the secret.
oneʌn
indicates people in general
One should exercise regularly.

Wiktionary

one(Noun)
The neutral element with respect to multiplication in a ring.
one(Noun)
The digit or figure 1.
one(Noun)
A one-dollar bill.
one(Noun)
One run scored by hitting the ball and running between the wickets; a single.
one(Noun)
Used instead of ! to amplify an exclamation, imitating n00bs who forget to press the shift key while typing exclamation points.
one(Noun)
A particularly special or compatible person or thing.
one(Pronoun)
One thing (among a group of others); one member of a group.
one(Pronoun)
The first mentioned of two things or people, as opposed to the other.
She offered him an apple and an orange; he took one and left the other.
one(Pronoun)
Any person (applying to people in general).
one(Pronoun)
Any person, entity or thing.
driver, noun: one who drives.
one(Adjective)
Of a period of time, being particular; as, one morning, one year.
One day the prince set forth to kill the dragon that had brought terror to his fatheru2019s kingdom for centuries.
one(Adjective)
Being a single, unspecified thing; a; any.
My aunt used to say, "One day is just like the other."
one(Adjective)
Sole, only.
He is the one man who can help you.
one(Adjective)
Whole, entire.
Body and soul are not separate; they are one.
one(Adjective)
In agreement.
We are one on the importance of learning.
one(Adjective)
The same.
The two types look very different, but are one species.
one(Adjective)
Being a preeminent example.
He is one hell of a guy.
one(Adjective)
Being an unknown person with the specified name.
The town records from 1843 showed the overnight incarceration of one u201CA. Lincolnu201D.

Origin: From one, oon, on, oan, an, from an , from ainaz, from óynos. Cognate with ae, ane, wan, yin, ån, aan, ien, een, één, en, ein, ein, eins, en, einn, unus (Old oinos), один.