all clearint.n.

Brit.

/ˌɔːl ˈklɪə/, U.S.

/ˈˌɔl ˈklɪ(ə)r/,

/ˈˌɑl ˈklɪ(ə)r/

Origin: Formed within English, by compounding. Etymons: all adv., clear adj.

Etymology: < all adv. + clear adj.

A. int.

Originally Nautical. Used to indicate that there is no danger or obstruction, and that it is safe to proceed.

ΚΠ

1826 London Mag. May 73 ‘Ay, ay, sir!—all clear, sir;’ continued the pilot, ‘all clear, sir, ready to let go.’

1863 St. Andrew's Univ. Mag. Feb. 67 ‘All clear, there?’ sung out Captain Buggins, to the company generally. ‘All clear,’ replied somebody for us all.

1896 R. C. Rogers Old Dorset (1897) 132 ‘Ezry,’ he whispered, ‘are dey gone?’.. ‘All clear, Carter—all clear.’

1939 T. S. Eliot Old Possum's Bk. Pract. Cats 40 The [railway] signal goes ‘All Clear!’

1950 M. Page With Sun in our Blood xvii. 179 At last a scout came running. ‘All clear!’

2006 M. Barbieri Murder 101 xxiv. 247 The other officer..checked all of the offices and called out ‘All clear!’

B. n. Chiefly with the.

1. A signal indicating that there is no danger or obstruction; esp. (a) a railway signal indicating that the line is clear (cf. danger n. 4c); (b) a signal given by means of a siren, etc., to inform the public that (the danger of) an air raid is over (cf. alert n. 1b, warning n.¹ 5d). Now chiefly historical.Recorded earliest in attributive use; cf. Compounds.

ΘΚΠ

the world > action or operation > safety > [noun] > safety signal

all clear1853

society > communication > indication > signalling > [noun] > signal > danger-signal > all clear

all clear1853

1853 Let. 25 Oct. in Sessional Papers House of Lords LXVI. 232 Had an ‘all clear’ as well as danger signal been required to be exhibited, the accident would not have occurred.

1863 Civil Engineer & Architect's Jrnl. 26 106/1 The ordinary station signals now in use gave three signals, ‘all clear’, ‘danger’, and ‘caution’.

1895 Railway & Locomotive Engin. 8 5/1 The practice on one road using green for the ‘all clear’ is to show both a red and a green light for the caution signal.

1918 M. Aldrich Peak of Load xxiv. 213 But while the ‘all clear’ was being bugled in the streets there came a second alerte.

1939 War Weekly 3 Nov. 41/2 The alarm was at 2.30 and the ‘all clear’ half an hour later.

1979 NBC Def. (U.S. Army) vi. 6-7/2 If the commander established a visual signal for the ‘all clear’, the appropriate color is white.

2001 A. J. Veenendaal Railways in Netherlands xi. 152 The signaling system did not change much, apart from the substitution of green for white lights as the all-clear.

2. gen. An indication that it is safe or permitted to proceed in some course of action; a notification that there is no longer any danger or risk. Frequently in to give the all clear.

ΚΠ

1864 Lloyd's Weekly Newspaper 25 Dec. 5/5 I am afraid I have done something wrong, and have given ‘all clear’.

1930 L. Charteris Enter Saint i. 34 From now on, I want you to keep away from me till I give you the all-clear.

1985 Sunday Mail (Queensland) (Nexis) 28 July Doctors gave Bruce a check-up six months ago and he was given the all clear.

1999 D. Mitchell Ghostwritten 416 Aloysius's trajectory has been treble-checked..and Earth has an all-clear.

2009 ‘R. Keeland’ tr. S. Larsson Girl who played with Fire i. 13 It was far from certain that the battery of company lawyers would give the story the all-clear.

Compounds

attributive. Designating a sign or signal indicating that there is no danger or obstruction.

ΚΠ

1853‘All clear’ signal [see sense B. 1].

1864 Standard 20 Dec. You have taken all the necessary precautions, and have not given the ‘All clear signal’.

1874 Pop. Sci. Monthly Mar. 586 It was only when the switch-handle was pushed over to Off that the ‘all-clear’ signal could be given.

1918 Electric Railway Jrnl. 4 May 846/1 This group of lights is switched off and those behind the ‘All Clear’ sign are switched on.

1922 P. G. Wodehouse Girl on Boat xvii. 282 Webster had promised to come and knock an all-clear signal on the door.

1940 Life 16 Sept. 27/1 The errand boys wear tin hats, the ice-cream man reappears before the ‘All Clear’ siren has sounded.

1962 Times 24 Apr. 4/2 The all-clear flag was not raised.

1975 Ebony June 66/1 The slaves..waited..for the woman to give an all-clear sign.

2006 A. Brown tr. J. Friedrich Fire v. 414 Düsseldorf lamented ten deaths from 130 bombs, due in part to a premature all-clear signal.

This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	all clear
释义	all clearint.n. Brit. /ˌɔːl ˈklɪə/, U.S. /ˈˌɔl ˈklɪ(ə)r/, /ˈˌɑl ˈklɪ(ə)r/ Origin: Formed within English, by compounding. Etymons: all adv., clear adj. Etymology: < all adv. + clear adj. A. int. Originally Nautical. Used to indicate that there is no danger or obstruction, and that it is safe to proceed. ΚΠ 1826 London Mag. May 73 ‘Ay, ay, sir!—all clear, sir;’ continued the pilot, ‘all clear, sir, ready to let go.’ 1863 St. Andrew's Univ. Mag. Feb. 67 ‘All clear, there?’ sung out Captain Buggins, to the company generally. ‘All clear,’ replied somebody for us all. 1896 R. C. Rogers Old Dorset (1897) 132 ‘Ezry,’ he whispered, ‘are dey gone?’.. ‘All clear, Carter—all clear.’ 1939 T. S. Eliot Old Possum's Bk. Pract. Cats 40 The [railway] signal goes ‘All Clear!’ 1950 M. Page With Sun in our Blood xvii. 179 At last a scout came running. ‘All clear!’ 2006 M. Barbieri Murder 101 xxiv. 247 The other officer..checked all of the offices and called out ‘All clear!’ B. n. Chiefly with the. 1. A signal indicating that there is no danger or obstruction; esp. (a) a railway signal indicating that the line is clear (cf. danger n. 4c); (b) a signal given by means of a siren, etc., to inform the public that (the danger of) an air raid is over (cf. alert n. 1b, warning n.¹ 5d). Now chiefly historical.Recorded earliest in attributive use; cf. Compounds. ΘΚΠ the world > action or operation > safety > [noun] > safety signal all clear1853 society > communication > indication > signalling > [noun] > signal > danger-signal > all clear all clear1853 1853 Let. 25 Oct. in Sessional Papers House of Lords LXVI. 232 Had an ‘all clear’ as well as danger signal been required to be exhibited, the accident would not have occurred. 1863 Civil Engineer & Architect's Jrnl. 26 106/1 The ordinary station signals now in use gave three signals, ‘all clear’, ‘danger’, and ‘caution’. 1895 Railway & Locomotive Engin. 8 5/1 The practice on one road using green for the ‘all clear’ is to show both a red and a green light for the caution signal. 1918 M. Aldrich Peak of Load xxiv. 213 But while the ‘all clear’ was being bugled in the streets there came a second alerte. 1939 War Weekly 3 Nov. 41/2 The alarm was at 2.30 and the ‘all clear’ half an hour later. 1979 NBC Def. (U.S. Army) vi. 6-7/2 If the commander established a visual signal for the ‘all clear’, the appropriate color is white. 2001 A. J. Veenendaal Railways in Netherlands xi. 152 The signaling system did not change much, apart from the substitution of green for white lights as the all-clear. 2. gen. An indication that it is safe or permitted to proceed in some course of action; a notification that there is no longer any danger or risk. Frequently in to give the all clear. ΚΠ 1864 Lloyd's Weekly Newspaper 25 Dec. 5/5 I am afraid I have done something wrong, and have given ‘all clear’. 1930 L. Charteris Enter Saint i. 34 From now on, I want you to keep away from me till I give you the all-clear. 1985 Sunday Mail (Queensland) (Nexis) 28 July Doctors gave Bruce a check-up six months ago and he was given the all clear. 1999 D. Mitchell Ghostwritten 416 Aloysius's trajectory has been treble-checked..and Earth has an all-clear. 2009 ‘R. Keeland’ tr. S. Larsson Girl who played with Fire i. 13 It was far from certain that the battery of company lawyers would give the story the all-clear. Compounds attributive. Designating a sign or signal indicating that there is no danger or obstruction. ΚΠ 1853‘All clear’ signal [see sense B. 1]. 1864 Standard 20 Dec. You have taken all the necessary precautions, and have not given the ‘All clear signal’. 1874 Pop. Sci. Monthly Mar. 586 It was only when the switch-handle was pushed over to Off that the ‘all-clear’ signal could be given. 1918 Electric Railway Jrnl. 4 May 846/1 This group of lights is switched off and those behind the ‘All Clear’ sign are switched on. 1922 P. G. Wodehouse Girl on Boat xvii. 282 Webster had promised to come and knock an all-clear signal on the door. 1940 Life 16 Sept. 27/1 The errand boys wear tin hats, the ice-cream man reappears before the ‘All Clear’ siren has sounded. 1962 Times 24 Apr. 4/2 The all-clear flag was not raised. 1975 Ebony June 66/1 The slaves..waited..for the woman to give an all-clear sign. 2006 A. Brown tr. J. Friedrich Fire v. 414 Düsseldorf lamented ten deaths from 130 bombs, due in part to a premature all-clear signal. This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021). < int.n.1826
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