sb. (a.). [f. LOCK v.1 + UP adv.]

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  1.  The action of locking up, in various senses.

2

  a.  The action of locking up a school, etc., for the night; also, the time at which this is done.

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1871.  Routledge’s Ev. Boy’s Ann., March, 148. During the long winter’s evenings, after Lock-up.

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1890.  M. Williams, Leaves Life, I. 16. One of the amusements of the Lower boys was, after ‘lock up,’ to be perpetually ringing old Plumptree’s bell and running away.

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  b.  The action of ‘locking up’ capital, or investing it so that it cannot be quickly realized; an instance of this. Also, an amount so ‘locked up.’

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1866.  Crump, Banking, xi. 246. The banker continues to throw good money after bad, the termination of which … is an indefinite lock-up.

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1889.  Spectator, 9 March. This means a ‘lock-up’ of nine millions sterling.

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1893.  Westm. Gaz., 5 April, 6/3. To distinguish between bills and mortgages—between liquid assets and lock-ups. Ibid. (1900), 30 May, 9/3. Those who buy such shares as a ‘lock-up’ may possibly be able to sell them at much higher prices.

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  2.  (Short for lock-up house or room: see 4.) An apartment or building that can be locked up.

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  a.  gen.

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1890.  Daily News, 17 Feb., 3/4. No. 126 was what builders call the ‘lock up.’ Tools, screws, door handles, etc., were stored in the middle room on the first floor, the door of which was kept locked.

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  b.  A house or room for the detention (usually temporary) of offenders.

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1859.  Jephson, Brittany, ix. 141. Lodge me in the lock-up for the night.

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1865.  J. Cameron, Malayan India, 267. In ten days from the commencement of the riot 600 prisoners were accumulated in the lock-ups of the central police station.

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1891.  Barrie, Little Minister (1892), 65. Gavin was with the families whose breadwinners were now in the lock-up.

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  3.  An official who locks up a building for the night.

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1893.  H. Le Caron, 25 Years Secret Service (ed. 15), 165. Breslin, who was chief hospital warden, and Byrne, who was night-watchman and ‘lock-up,’ were armed with two revolvers each.

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  4.  attrib. passing into adj., with the sense ‘capable of being locked up’; as lock-up coach-house, line (of business), place, room, shed; lock-up house, a house of detention, spec. (see quot. 1785); lock-up shop, a detached apartment used as a shop and locked up at night.

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1840.  Dickens, Barn. Rudge, xxxv. Choice stabling, and a *lock-up coach-house.

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1767.  Chron., in Ann. Reg., 60/2. The office keeper … found it to be a *lock-up house for recruits. Ibid. (1772), *72. The detestable practices carried on by kidnappers … in what are called lock-up houses.

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1785.  Grose, Dict. Vulgar Tongue, Lock up house, a spunging house … also houses kept by agents or crimps, who inlist or rather trepan men to serve the East India, or African Company as soldiers.

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1804.  Europ. Mag., XLV. 332, note. Coleman-street … had in it … a Magistrate … and a lock-up house.

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1851.  Thackeray, Eng. Hum., iii. (1876), 246. He was in hiding, or worse than in hiding, in the lock-up house.

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1818.  Scott, Hrt. Midl., xiii. There is not a man … could be of sae muckle use … in the … *lock-up line of business.

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1809.  Malkin, Gil Blas, VI. i. ¶ 15. He … opened all his *lock-up places.

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1823.  Spirit Publ. Jrnls. (1825), I. 171. The Magistrate … was surprised to see such a figure brought out from amongst the filthy wretches … of the *lock-up room.

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1880.  Daily News, 7 Oct., 4/1. Dry and clean separate lock-up rooms.

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1812.  Col. Hawker, Diary (1893), I. 54. They are under a *lock-up shed.

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1897.  Daily News, 1 Dec., 3/5. The building is a *lock-up shop which was closed at about 6.30 last evening.

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