at signn.

Brit.

/ˈat sʌɪn/, U.S.

/ˈæt ˌsaɪn/

Origin: Formed within English, by compounding. Etymons: at prep., sign n.

Etymology: < at prep. + sign n.

The symbol @, read in English as ‘at’. Cf. commercial A n., commercial at n. at commercial adj. and n. Additions.The earliest evidence so far found for the symbol is in 16th-cent. European mercantile records, where it is used to represent units of measure (Italian anfora (see amphora n. 2) and Spanish and Portuguese arroba (see arroba n.)). In English, ‘@’ has been used since at least the 18th cent. in expressing the number of items in relation to price (at prep. 27).Since the development of email in the early 1970s, @ has also become a standard international symbol in email addresses, separating the user name from the domain name. This choice of symbol is credited to Ray Tomlinson, U.S. computer engineer and designer of the first electronic mail system:

1996 K. Hafner & M. Lyon Where Wizards stay up Late vii. 192 ‘I got there first, so I got to choose any punctuation I wanted,’ Tomlinson said. ‘I chose the @ sign.’ The character also had the advantage of meaning ‘at’ the designated institution.

ΘΚΠ

society > communication > writing > written character > name of written character > [noun] > others

Bc1000

Dc1000

ellc1000

Fc1000

Sc1000

yogha1300

Pa1398

ess1540

tee1610

alif1727

cue1755

em1793

en1793

dee1795

double U1841

edh1846

wye1857

vee1883

gee1926

nut1940

kay1959

at sign1977

1972 A. Bhushan Request for Comments (Network Working Group) (Electronic text) No. 414. 1 Others currently involved with ftp include Arvola Chan ( ac@mit-dmcg),..Greg Hicks ( hicks@utah) [etc.].]

1977 D. H. Crocker et al. Standard for Format of ARPA Network Text Messages 17 Full hierarchical addresses..are indicated as a series of words, separated by at-sign or at indications.

1980 E. Charniak & C. K. Riesbeck Artific. Intelligence Programming 35 A comma followed by an at-sign (@) indicates that we should..‘splice in’ the results.

1982 J. B. Postel Request for Comments (Network Working Group) (Electronic text) No. 808. 6 Outlawed by this rule are: a. Spaces in user names. b. Multiple at signs in mailboxes.

1991 B. MacWhinney Childes Project iv. 32 Other nonletter characters such as the plus sign (+) or the at sign (@) can be used within words.

1996 Independent 22 Jan. (Suppl.) 11/1 Neither of us could think of anything better than the ‘at sign’ for @.

This is a new entry (OED Third Edition, December 2002; most recently modified version published online December 2021).

单词	at sign
释义	at signn. Brit. /ˈat sʌɪn/, U.S. /ˈæt ˌsaɪn/ Origin: Formed within English, by compounding. Etymons: at prep., sign n. Etymology: < at prep. + sign n. The symbol @, read in English as ‘at’. Cf. commercial A n., commercial at n. at commercial adj. and n. Additions.The earliest evidence so far found for the symbol is in 16th-cent. European mercantile records, where it is used to represent units of measure (Italian anfora (see amphora n. 2) and Spanish and Portuguese arroba (see arroba n.)). In English, ‘@’ has been used since at least the 18th cent. in expressing the number of items in relation to price (at prep. 27).Since the development of email in the early 1970s, @ has also become a standard international symbol in email addresses, separating the user name from the domain name. This choice of symbol is credited to Ray Tomlinson, U.S. computer engineer and designer of the first electronic mail system: 1996 K. Hafner & M. Lyon Where Wizards stay up Late vii. 192 ‘I got there first, so I got to choose any punctuation I wanted,’ Tomlinson said. ‘I chose the @ sign.’ The character also had the advantage of meaning ‘at’ the designated institution. ΘΚΠ society > communication > writing > written character > name of written character > [noun] > others Bc1000 Dc1000 ellc1000 Fc1000 Sc1000 yogha1300 Pa1398 ess1540 tee1610 alif1727 cue1755 em1793 en1793 dee1795 double U1841 edh1846 wye1857 vee1883 gee1926 nut1940 kay1959 at sign1977 1972 A. Bhushan Request for Comments (Network Working Group) (Electronic text) No. 414. 1 Others currently involved with ftp include Arvola Chan ( ac@mit-dmcg),..Greg Hicks ( hicks@utah) [etc.].] 1977 D. H. Crocker et al. Standard for Format of ARPA Network Text Messages 17 Full hierarchical addresses..are indicated as a series of words, separated by at-sign or at indications. 1980 E. Charniak & C. K. Riesbeck Artific. Intelligence Programming 35 A comma followed by an at-sign (@) indicates that we should..‘splice in’ the results. 1982 J. B. Postel Request for Comments (Network Working Group) (Electronic text) No. 808. 6 Outlawed by this rule are: a. Spaces in user names. b. Multiple at signs in mailboxes. 1991 B. MacWhinney Childes Project iv. 32 Other nonletter characters such as the plus sign (+) or the at sign (@) can be used within words. 1996 Independent 22 Jan. (Suppl.) 11/1 Neither of us could think of anything better than the ‘at sign’ for @. This is a new entry (OED Third Edition, December 2002; most recently modified version published online December 2021). < n.1977
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