From WordNet (r) 3.0 (2006) [wn]:
once
adv 1: on one occasion; "once I ran into her" [syn: once, {one
time}, in one case]
2: as soon as; "once we are home, we can rest"
3: at a previous time; "at one time he loved her"; "her
erstwhile writing"; "she was a dancer once"; [syn: once,
formerly, at one time, erstwhile, erst]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Once \Once\ ([o^]ns), n. (Zool.)
The ounce.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Once \Once\ (w[u^]ns), adv. [OE. ones, anes, an adverbial form
fr. one, on, an, one. See One-, -Wards.]
1. For one time; by limitation to the number one; not twice
nor any number of times more than one.
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Ye shall . . . go round about the city once. --Josh.
vi. 3.
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Trees that bear mast are fruitful but once in two
years. --Bacon.
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2. At some one period of time; -- used indefinitely.
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My soul had once some foolish fondness for thee.
--Addison.
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That court which we shall once govern. --Bp. Hall.
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3. At any one time; -- often nearly equivalent to ever, if
ever, or whenever; as, once kindled, it may not be
quenched.
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Wilt thou not be made clean? When shall it once be?
--Jer. xiii.
27.
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To be once in doubt
Is once to be resolved. --Shak.
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Note: Once is used as a noun when preceded by this or that;
as, this once, that once. It is also sometimes used
elliptically, like an adjective, for once-existing.
"The once province of Britain." --J. N. Pomeroy.
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At once.
(a) At the same point of time; immediately; without delay.
"Stand not upon the order of your going, but go at
once." --Shak. "I . . . withdrew at once and
altogether." --Jeffrey.
(b) At one and the same time; simultaneously; in one body;
as, they all moved at once.
Once and again, once and once more; repeatedly. "A dove
sent forth once and again, to spy." --Milton.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Ounce \Ounce\, n. [F. once; cf. It. lonza, Sp. onza; prob. for
lonce, taken as l'once, fr. L. lynx, Gr. ?, or an (assumed)
fem. adj. lyncea, from lynx. Cf. Lynx.] (Zool.)
A feline quadruped (Felis irbis syn. Felis uncia)
resembling the leopard in size, and somewhat in color, but it
has longer and thicker fur, which forms a short mane on the
back. The ounce is pale yellowish gray, with irregular dark
spots on the neck and limbs, and dark rings on the body. It
inhabits the lofty mountain ranges of Asia. Called also
once.
[1913 Webster] Ounded