ONCE
once, one time, in one case
(adverb) on one occasion; “once I ran into her”
once, formerly, at one time, erstwhile, erst
(adverb) at a previous time; “at one time he loved her”; “her erstwhile writing”; “she was a dancer once”
once
(adverb) as soon as; “once we are home, we can rest”
Source: WordNet® 3.1
Etymology
Adverb
once (not comparable)
(frequency) One and only one time.
(temporal location) Formerly; during some period in the past.
(mathematics) Multiplied by one: indicating that a number is multiplied by one.
As soon as.
(obsolete) At a future time.
Synonyms
• (one time): See once
• (formerly): See formerly
Coordinate terms
• (one time): twice, thrice, often, never, seldom
• (formerly): yesterday, tomorrow
Conjunction
once
As soon as; when; after.
Anagrams
• Coen, Cone, Econ., Noce, ceno-, coen-, cone, cĹ“n-, econ, econ.
Source: Wiktionary
Once, n. (Zoöl.)
Definition: The ounce.
Once, adv. Etym: [OE. ones, anes, an adverbial form fr. one, on, an,
one. See One-, -Wards.]
1. By limitation to the number one; for one time; not twice nor any
number of times more than one.
Ye shall . . . go round about the city once. Josh. vi. 3.
Trees that bear mast are fruitful but once in two years. Bacon.
2. At some one period of time; -- used indefinitely.
My soul had once some foolish fondness for thee. Addison.
That court which we shall once govern. Bp. Hall.
3. At any one time; -- often nearly equivalent to ever, if ever, or
whenever; as, once kindled, it may not be quenched.
Wilt thou not be made clean When shall it once be Jer. xiii. 27.
To be once in doubt Is once to be resolved. Shak.
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.. 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.
Source: Webster’s Unabridged Dictionary 1913 Edition