The Collaborative International Dictionary of English v.0.48:
One \One\ (w[u^]n), a. [OE. one, on, an, AS. [=a]n; akin to D.
een, OS. [=e]n, OFries. [=e]n, [=a]n, G. ein, Dan. een, Sw.
en, Icel. einn, Goth. ains, W. un, Ir. & Gael. aon, L. unus,
earlier oinos, oenos, Gr. o'i`nh the ace on dice; cf. Skr.
[=e]ka. The same word as the indefinite article a, an. [root]
299. Cf. 2d A, 1st An, Alone, Anon, Any, None,
Nonce, Only, Onion, Unit.]
1. Being a single unit, or entire being or thing, and no
more; not multifold; single; individual.
[1913 Webster]
The dream of Pharaoh is one. --Gen. xli.
25.
[1913 Webster]
O that we now had here
But one ten thousand of those men in England.
--Shak.
[1913 Webster]
2. Denoting a person or thing conceived or spoken of
indefinitely; a certain. "I am the sister of one Claudio"
[--Shak.], that is, of a certain man named Claudio.
[1913 Webster]
3. Pointing out a contrast, or denoting a particular thing or
person different from some other specified; -- used as a
correlative adjective, with or without the.
[1913 Webster]
From the one side of heaven unto the other. --Deut.
iv. 32.
[1913 Webster]
4. Closely bound together; undivided; united; constituting a
whole.
[1913 Webster]
The church is therefore one, though the members may
be many. --Bp. Pearson
[1913 Webster]
5. Single in kind; the same; a common.
[1913 Webster]
One plague was on you all, and on your lords. --1
Sam. vi. 4.
[1913 Webster]
6. Single; unmarried. [Obs.]
[1913 Webster]
Men may counsel a woman to be one. --Chaucer.
[1913 Webster]
Note: One is often used in forming compound words, the
meaning of which is obvious; as, one-armed, one-celled,
one-eyed, one-handed, one-hearted, one-horned,
one-idead, one-leaved, one-masted, one-ribbed,
one-story, one-syllable, one-stringed, one-winged, etc.
[1913 Webster]
All one, of the same or equal nature, or consequence; all
the same; as, he says that it is all one what course you
take. --Shak.
One day.
(a) On a certain day, not definitely specified, referring
to time past.
[1913 Webster]
One day when Phoebe fair,
With all her band, was following the chase.
--Spenser.
[1913 Webster]
(b) Referring to future time: At some uncertain day or
period in the future; some day.
[1913 Webster]
Well, I will marry one day. --Shak.
[1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Day \Day\ (d[=a]), n. [OE. day, dai, dei, AS. d[ae]g; akin to
OS., D., Dan., & Sw. dag, G. tag, Icel. dagr, Goth. dags; cf.
Skr. dah (for dhagh ?) to burn. [root]69. Cf. Dawn.]
1. The time of light, or interval between one night and the
next; the time between sunrise and sunset, or from dawn to
darkness; hence, the light; sunshine; -- also called
daytime.
[1913 Webster +PJC]
2. The period of the earth's revolution on its axis. --
ordinarily divided into twenty-four hours. It is measured
by the interval between two successive transits of a
celestial body over the same meridian, and takes a
specific name from that of the body. Thus, if this is the
sun, the day (the interval between two successive transits
of the sun's center over the same meridian) is called a
solar day; if it is a star, a sidereal day; if it is
the moon, a lunar day. See Civil day, Sidereal day,
below.
[1913 Webster]
3. Those hours, or the daily recurring period, allotted by
usage or law for work.
[1913 Webster]
4. A specified time or period; time, considered with
reference to the existence or prominence of a person or
thing; age; time.
[1913 Webster]
A man who was great among the Hellenes of his day.
--Jowett
(Thucyd. )
[1913 Webster]
If my debtors do not keep their day, . . .
I must with patience all the terms attend. --Dryden.
[1913 Webster]
5. (Preceded by the) Some day in particular, as some day of
contest, some anniversary, etc.
[1913 Webster]
The field of Agincourt,
Fought on the day of Crispin Crispianus. --Shak.
[1913 Webster]
His name struck fear, his conduct won the day.
--Roscommon.
[1913 Webster]
Note: Day is much used in self-explaining compounds; as,
daybreak, daylight, workday, etc.
[1913 Webster]
Anniversary day. See Anniversary, n.
Astronomical day, a period equal to the mean solar day, but
beginning at noon instead of at midnight, its twenty-four
hours being numbered from 1 to 24; also, the sidereal day,
as that most used by astronomers.
Born days. See under Born.
Canicular days. See Dog day.
Civil day, the mean solar day, used in the ordinary
reckoning of time, and among most modern nations beginning
at mean midnight; its hours are usually numbered in two
series, each from 1 to 12. This is the period recognized
by courts as constituting a day. The Babylonians and
Hindoos began their day at sunrise, the Athenians and Jews
at sunset, the ancient Egyptians and Romans at midnight.
Day blindness. (Med.) See Nyctalopia.
Day by day, or Day after day, daily; every day;
continually; without intermission of a day. See under
By. "Day by day we magnify thee." --Book of Common
Prayer.
Days in bank (Eng. Law), certain stated days for the return
of writs and the appearance of parties; -- so called
because originally peculiar to the Court of Common Bench,
or Bench (bank) as it was formerly termed. --Burrill.
Day in court, a day for the appearance of parties in a
suit.
Days of devotion (R. C. Ch.), certain festivals on which
devotion leads the faithful to attend mass. --Shipley.
Days of grace. See Grace.
Days of obligation (R. C. Ch.), festival days when it is
obligatory on the faithful to attend Mass. --Shipley.
Day owl, (Zool.), an owl that flies by day. See Hawk owl.
Day rule (Eng. Law), an order of court (now abolished)
allowing a prisoner, under certain circumstances, to go
beyond the prison limits for a single day.
Day school, one which the pupils attend only in daytime, in
distinction from a boarding school.
Day sight. (Med.) See Hemeralopia.
Day's work (Naut.), the account or reckoning of a ship's
course for twenty-four hours, from noon to noon.
From day to day, as time passes; in the course of time; as,
he improves from day to day.
Jewish day, the time between sunset and sunset.
Mean solar day (Astron.), the mean or average of all the
apparent solar days of the year.
One day, One of these days, at an uncertain time, usually
of the future, rarely of the past; sooner or later. "Well,
niece, I hope to see you one day fitted with a husband."
--Shak.
Only from day to day, without certainty of continuance;
temporarily. --Bacon.
Sidereal day, the interval between two successive transits
of the first point of Aries over the same meridian. The
Sidereal day is 23 h. 56 m. 4.09 s. of mean solar time.
To win the day, to gain the victory, to be successful. --S.
Butler.
Week day, any day of the week except Sunday; a working day.
Working day.
(a) A day when work may be legally done, in distinction
from Sundays and legal holidays.
(b) The number of hours, determined by law or custom,
during which a workman, hired at a stated price per
day, must work to be entitled to a day's pay.
[1913 Webster]