Useful typographic Unicode characters

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Unicode has some typographic characters that are useful. Here is my list of my Unicode special characters:

Name Char HTML-Code (hex) XML-Entity (dec) HTML Linux Compose
Ellipsis … ™ … . .
Normal Space    
Non-breaking Space         space space
Hyphenation Point / Soft Hyphen ­ ­ ­ ­
Punctuation space (french spacing)     space .
Thin space      
Invisible character, invisible space, invisible word separation ​ ​
en space      
em space      
Normal hypen or minus - - -
Non-breaking hyphen ‑ ‑
en dash – – – - - .
em dash — — — - - -
Bar | | | . -
Middle dot · · · . -
Bullet • • • . =
Circle ● ●
Medium circle ⚫ ⚫
Triangle bullet ‣ ‣
End of proof ∎ ∎
Square ■ ■
Medium square ◼ ◼
Small medium square ◾ ◾
Small square ▪ ▪
Quote " " " "
Apostrophe ' ' ' '
Left single quotation mark &#x2018; &#8216; &lsquo; < ' or ' <
Right single quotation mark &#x2019; &#8217; &rsquo; > ' or ' >
Single low quotation mark &#x201A; &#8218; &sbquo; ' , or , '
Left double quotation mark &#x201C; &#8220; &ldquo; < " or < "
Right double quotation mark &#x201D; &#8221; &rdquo; > " or " >
Double low quotation mark &#x201E; &#8222; &bdquo; " , or , "
Left double angle quotation mark &#x203a; &#8250; &lsaquo; . >
Right single angle quotation mark &#x2039; &#8249; &rsaquo; . <
Left double angle quotation mark « &#x00AB; &#171; &laquo; < <
Right double angle quotation mark » &#x00BB; &#187; &raquo; > >
Left arrow &#x2190; &#8592; &larr; < -
Right arrow &#x2192; &#8594; &rarr; - >
Right double arrow &#x21D2; &#8658; &rArr;
Trade mark &#x2122; &#8482; &trad; t m
Registered trade mark ® &#x00AE; &#174; &reg; o r
Plus minus ± &#x00B1; &#177; &plusmn; + -
Voltage, flash &#x26A1; &#9889;
Hot &#x2668; &#9832;
Heart &#x2661; &#9825;
Black heart &#x2665; &#9829; < 3
Heavy black heart &#x2764; &#10084;
Smily &#x263a; &#9786; : )
Sad face &#x2639; &#9785; : (
Hammer and sickle &#x262d; &#9773; C C C P
Hammer and pick &#x2692; &#9874;
Numero sign &#x2116; &#8470; N o
Justice &#x2696; &#9878;
Medicine &#x2695; &#9877;
Medicine US &#x2624; &#9764;
Battele &#x2694; &#9876;
Disabled &#x267F; &#9855;
Danger &#x2620; &#9760;
Warning &#x26A0; &#9888;
Dead &#x2020; &#8224; &dagger;

Reference:

More on hyphenation can be found in the German article Responsive HTML Tabellen und Worttrenner (Hyphen) in HTML (­ oder )