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1
- 1.1 Translingual
  - 1.1.1 Symbol
  - 1.1.2 See also
2 　
- 2.1 Translingual
  - 2.1.1 Symbol
3 #
- 3.1 Translingual
  - 3.1.1 Symbol
    - 3.1.1.1 Usage notes
- 3.2 English
  - 3.2.1 Etymology
    - 3.2.1.1 Noun
    - 3.2.1.2 Related terms
      - 3.2.1.2.1 See also
4 .
- 4.1 Translingual
  - 4.1.1 Symbol
5 ..
- 5.1 Translingual
  - 5.1.1 Symbol
6 :
- 6.1 Translingual
  - 6.1.1 Symbol
    - 6.1.1.1 See also
- 6.2 English
  - 6.2.1 Symbol
7 ::
- 7.1 Translingual
  - 7.1.1 Symbol
8 :(
- 8.1 Translingual
  - 8.1.1 Symbol
    - 8.1.1.1 Antonyms
9 :)
- 9.1 Translingual
  - 9.1.1 Symbol
    - 9.1.1.1 Antonyms
10 :-(
- 10.1 Translingual
  - 10.1.1 Etymology
  - 10.1.2 Symbol
    - 10.1.2.1 Synonym
11 :-)
- 11.1 Translingual
  - 11.1.1 Etymology
  - 11.1.2 Symbol
    - 11.1.2.1 Synonym
12 :=
- 12.1 Translingual
  - 12.1.1 Symbol
13 <
- 13.1 Translingual
14 <3
- 14.1 Translingual
  - 14.1.1 Etymology
  - 14.1.2 Verb
15 <>
- 15.1 Translingual
  - 15.1.1 Symbol
    - 15.1.1.1 Usage notes
16 <·
- 16.1 Translingual
  - 16.1.1 Symbol
  - 16.1.2 See also
17 >
- 17.1 Translingual
18 [
- 18.1 Translingual
19 ]
- 19.1 Translingual
20 _
- 20.1 Translingual
  - 20.1.1 Symbol
  - 20.1.2 See also
21 {
- 21.1 Translingual
22 |
- 22.1 Translingual
  - 22.1.1 Symbol
  - 22.1.2 See also
23 }
- 23.1 Translingual
24 References

The Universal Character Set

Unicode name	SPACE
Basic Latin	U+0020

Translingual

Symbol

] [

separation between words (called a space).

　

The Universal Character Set

Unicode name	IDEOGRAPHIC SPACE
Codepoint	U+3000

Translingual

Symbol

]　[

fullwidth (Ideographic) space;

#

See also ♯

The Universal Character Set

Unicode name	NUMBER SIGN
Basic Latin	U+0023

Translingual

Symbol

#

(computing) The hash character

Usage notes

In English it is called the pound sign, number sign, hash sign, or octothorpe.

English

Etymology

The symbol # derives from the abbreviation lb for Latin libra (“‘pound’”), via the medieval convention of indicating abbreviations with an over-stroke, which in this case crossed the risers of the l and b (approximately l͞b, or lb).

Noun

Singular
#

Plural
# or #s

# (plural # or #s)

(food packaging, US) Pound (unit of weight)
3# — "three pounds"
(followed by a numeral: used attributively) Number
#3 — "number three"

Related terms

£

.

The Universal Character Set

Unicode name	FULL STOP
Basic Latin	U+002E

Translingual

Symbol

.

indicates the end of a sentence.
end of abbreviation
etc. — “et cetera”
In some counting systems, the decimal separator.
In some counting systems, the thousands separator.
(computing) a delimiter
en.wiktionary.org — “the Internet domain name with components ‘en’, ‘wiktionary’, and ‘org’”
document.txt — “the file with the base name ‘document’ and the extension ‘txt’”
(computing, various operating systems) the current directory
ls . — “list the contents of the current directory”
(computing, various programming languages) structure access operator
point.x — “the ‘x’ property of the ‘point’ variable”

Usage notes

In English, the symbol . has various names, used in different contexts:

To signify the end of a sentence: period or full stop
- My name is John. - My name is John period (US) or My name is John full stop (UK)
For use as a decimal separator: point
- 3.45 - three point four five
For use of a thousand separator: - (not pronounced)
- There are 1.000 species left. - There are one thousand species left
In names in computing contexts (file-names, domain-names, and so on): dot
- john.smith@example.com - john dot smith at example dot com

Synonyms

(decimal separator): , (in some counting systems)
(thousand separator): , (in some counting systems)

..

Translingual

Symbol

..

(computing) the parent directory.

:

The Universal Character Set

Unicode name	COLON
Basic Latin	U+003A

Translingual

Symbol

:

Separates numbers in a ratio.
There is a 5:4 ratio of boys to girls in my class.
Separates hours, minutes, and seconds when reporting time
The train leaves at 5:40.
Separation of the chapter and the verse number(s) indication
John 3:14–16 (or John III:14–16)
Introduces a series of itmes
I have three things to pickup at the store: eggs, milk, and bread.
Separation of a title and the corresponding subtitle
Star Wars Episode IV: A New Hope

English

Symbol

:

Introduces a quotation
Mary gave advice to her children: a stitch in time saves nine.
Patient: Is there a doctor in here?
Introduces a sentence with the role of apposition with respect to the previous one
Luruns could not speak: he was drunk
Introduces the logical consequence, or effect, of a fact stated before
There was only one possible explanation: the train had never arrived
Separation of clauses in a periodic sentence

::

Translingual

Symbol

::

(rare) (Used in a proportion to separate one ratio from another.)

:(

Translingual

Symbol

:(

Alternative form of :-(.

Antonyms

:)

:)

Translingual

Symbol

:)

Alternative form of :-).

Antonyms

:(

:-(

Translingual

Etymology

First used with the intended purpose of expressing emotion in a post by Scott Fahlman to the Carnegie Mellon University computer science general bulletin board on 19 September 1982^[1].

Symbol

:-(

(Internet, instant messaging) sad face.

Synonym

:(

:-)

Translingual

Etymology

First used with the intended purpose of expressing emotion in a post by Scott Fahlman to the Carnegie Mellon University computer science general bulletin board on 19 September 1982^[1].

Symbol

:-)

a smiley face

Synonym

:)

:=

Translingual

Symbol

:=

Indicates that the thing on the left is defined to be the thing on the right

<

The Universal Character Set

Unicode name	LESS-THAN SIGN
Basic Latin	U+003C

Translingual

Symbol

<

Less than; used to show the number on the left has a lower value than the one on the right.
$\forall x< 3$ — for all x less than three
$x < 3$ — x is less than three

Synonyms

≱

Antonyms

≥

Related terms

<3

Translingual

Etymology

From its shape as a heart.

Verb

<3

(emoticon) Love.

<>

Translingual

Symbol

<>

unequal

Usage notes

Used especially in plaintext, wherein the more usual symbol ≠ cannot be used.

<·

Translingual

Symbol

<·

covers. "is covered by"

>

The Universal Character Set

Unicode name	GREATER-THAN SIGN
Basic Latin	U+003E

Translingual

Symbol

>

Greater than, more than; used to show the number on the left has a greater value than the one on the right.
$\forall x>3$
for all x greater than three

$x > 3$
x is greater than three

Synonyms

≰

Antonyms

Related terms

[

The Universal Character Set

Unicode name	LEFT SQUARE BRACKET
Basic Latin	U+005B

Translingual

Symbol

[

left square bracket
(mathematics) In set builder notation, an inward facing bracket represents a closed endpoint of an interval (an inward facing parenthesis denotes an open endpoint).
$[a,b)=\{x\in\R\,|\,a\le x<b\}$ ,
(mathematics) In ISO 31-11 notation, an inward facing bracket denotes a closed endpoint of an interval and an outward facing bracket denotes an open endpoint.
$\left[a,b\right[ = \{x\,|\, a\le x < b\}$

Related terms

]

]

The Universal Character Set

Unicode name	RIGHT SQUARE BRACKET
Basic Latin	U+005D

Translingual

Symbol

]

right square bracket

Related terms

[

_

The Universal Character Set

Unicode name	LOW LINE
Basic Latin	U+005F

Translingual

Symbol

_

The underscore symbol, often used in place of a space in email addresses.
My email address is jon_smith@example.com.

{

The Universal Character Set

Unicode name	LEFT CURLY BRACKET
Basic Latin	U+007B

Translingual

Symbol

{

left curly bracket

Related terms

}

|

See also ∣, ׀, and ǀ

The Universal Character Set

Unicode name	VERTICAL LINE
Basic Latin	U+007C

Translingual

Symbol

|

(logic) vertical bar, or pipe (used to join two statements of which not both are true.)
(mathematics) Such that; having the property that.
$\lbrace x\in\mathbb{R}|x>0\rbrace$
(mathematics, of an expression) Evaluated at.
$x + 2 | x = 1 = 3$
(mathematics) absolute value, or, more generally, modulus
|-3| = 3
For x = (1,1), and y = (4,5), |x – y| = √([1–4]2 + [1–5]2) = 5
determinant
|A| means the determinant of the matrix A
(mathematics) cardinality
$\left|\{3, 5, 7, 9\}\right| = 4$
(mathematics) number of connected components
$\left|S^0\right|=2$
(statistics) conditional probability
Pr(X|Y) — "The probability of X given Y"

}

The Universal Character Set

Unicode name	RIGHT CURLY BRACKET
Basic Latin	U+007D

Translingual

Symbol

}

right curly bracket

Related terms

{

References

Notes:

↑ ^1.0 ^1.1 ":) turns 25", 2007-09-20. Retrieved on 2007-09-20.

Return to Wiktionary:Main Page.

[smiley-0] 1.0 ^1.1 ":) turns 25", 2007-09-20. Retrieved on 2007-09-20.

[1]

Bad title

Definition from Wiktionary, a free dictionary

Contents

Translingual

Symbol

See also

Translingual

Symbol

#

Translingual

Symbol

Usage notes

English

Etymology

Noun

Related terms

See also

.

Translingual

Symbol

Usage notes

Synonyms

See also

..

Translingual

Symbol

:

Translingual

Symbol

See also

English

Symbol

::

Translingual

Symbol

:(

Translingual

Symbol

Antonyms

:)

Translingual

Symbol

Antonyms

:-(

Translingual

Etymology

Symbol

Synonym

:-)

Translingual

Etymology

Symbol

Synonym

:=

Translingual

Symbol

<

Translingual

Symbol

Synonyms

Antonyms

Related terms

See also

<3

Translingual

Etymology

Verb

<>

Translingual

Symbol

Usage notes

<·

Translingual

Symbol

See also

>

Translingual

Symbol

Synonyms

Antonyms