Of or pertaining to a specific period of time in the past, not extending to the present.
He was the one-time president of the club.
His one-time investment in a brickyard had put the idea into his head—an idea that he decided was a good one, for it enabled him to suggest that she ride along with him to inspect the quarry.1910, Jack London, chapter XIII, in Burning Daylight:
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Pollyanna never doubted now that John Pendleton was her Aunt Polly's one-time lover; […]1913, Eleanor H. Porter, chapter 18, in Pollyanna, L.C. Page, →OCLC:
The old Ramsgate Harbour station of the one-time South Eastern Railway was a case in point, as also the stations in the Isle of Wight that you name, such as Ventnor West.1945 July and August, “The Why and The Wherefore: Station Turntables”, in Railway Magazine, page 241, reply to J. A. Drew:
Has the one-time wonder fuel become the new asbestos – not to say mustard gas?2017 April 13, Adam Forrest, “The death of diesel: has the one-time wonder fuel become the new asbestos?”, in The Guardian:
2
Occurring or used in a single instance and then never again.
one-time charge/payment
He was an eloquent speaker, and his slip of the tongue was a one-time error.
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Even if an attacker manages to intercept a one-time password, that password has already been used and is no longer usable to authenticate.2007, Markus Jakobsson, Steven Myers, Phishing and Countermeasures, Wiley, →ISBN:
Basel's good moment continued, and in stoppage time of the first half, Streller released Salah with a clever pass down the middle and the young Egyptian one-timed the ball over Čech.2013 May 3, Werner Pichler, “Europa League 2012/13, Semifinal, 2nd Leg (R)”, in rec.sport.soccer (Usenet):
Ayo, it's Hell on Earth Whose necks are gonna be first? The projects is front line And the enemy is one-time I ain't gotta tell you It's right in front of your eyes1996, Mobb Deep, “Front Lines (Hell on Earth)”, in Hell on Earth:
one time
adv
1
Informal Used to introduce a narrative concerning a past event
Her eyes would suddenly become fixed on the other side of the room, and for a moment or two she would seem bewildered and absent. One time I was watching her in this state, when her husband took me by the arm and said, 'Come away, Tom.'1843, George Payne Rainsford James, The Commissioner: Or, De Lunatico Inquirendo, page 186:
One time we cotch four hunderd and fifty thousand at one haul.1855, John Lewis, New Hope: Or, The Rescue. A Tale of the Great Kanawha, page 167:
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One time I untied the boat as we were leaving, started to yell Lines off, deckhand on […].2008, Benjamin Drevlow, Bend with the Knees: And Other Love Advice from My Father, page 14:
One time he hadn't held onto himself—the time he worked for the Sedona cattle people up on Oak Creek—and it was the reason he was here.2009, Elmore Leonard, Forty Lashes Less One, page 24:
So, one time, he didn't come back, and didn't come back, and his dinner got cold. When he did come back eventually, he brought a tray of cakes for our girls. Know what I did?” / I shook my head. / “I took the tray from him and threw it all over the garden for the goats and chickens. I was so mad.2020, Christine Trueman, See You Again, One Time in Saint Helena: