| As of version 3.2, the Unicode standard has 22 semantically distinct space characters. They are enumerated below, separated by code block.
The columns below should be interpreted as :
- The Unicode code for the character
- The character in question
- The Unicode name for the character
- The HTML entity if any. (&#xUUUU; always works)
C0 Controls and Basic Latin
U+0020 space
C1 Controls and Latin-1 Supplement
U+00a0 no break space
Ogham
U+1680 ogham space mark
General Punctuation
U+2000 en quad
U+2001 em quad
U+2002 en space  
U+2003 em space  
U+2004 three per em space
U+2005 four per em space
U+2006 six per em space
U+2007 figure space
U+2008 punctuation space
U+2009 thin space  
U+200a hair space
U+200b zero width space
U+202f narrow no break space
U+205f medium mathematical space
Control Pictures
U+2420 ␠ symbol for space
CJK Symbols and Punctuation
U+3000 ideographic space
U+303f 〿 ideographic half fill space
Arabic Presentation Forms B
U+feff zero width no break space
Tags
U+e0020 tag space
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