ο

U+03BF GREEK SMALL LETTER OMICRON

U+03BF was added to Unicode in version 1.1 (1993). It belongs to the block Greek and Coptic in the Basic Multilingual Plane.

This character is a Lowercase Letter and is mainly used in the Greek script. It is related to its uppercase variant Ο and its titlecase variant Ο.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. The glyph can, under circumstances, be confused with 125 other glyphs. In text U+03BF behaves as Alphabetic regarding line breaks. It has type Lower for sentence and ALetter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

Omicron (uppercase Ο, lowercase ο, literally "small o": Όμικρον, o mikron, micron meaning 'small' in contrast to omega) is the 15th letter of the Greek alphabet. In the system of Greek numerals it has a value of 70. It is rarely used in mathematics because it is indistinguishable from the Latin letters O, o and easily confused with the digit 0. This letter is derived from the Phoenician letter ayin . In classical Greek, omicron represented the sound [o] in contrast to omega [ɔː] and ου [oː]. In modern Greek, omicron represents the sound [ɔ]. Letters that arose from omicron include Roman O and Cyrillic O.

In Unicode the capital letter is codepoint U+039F and the lowercase is U+03BF.

The upper-case letter of omicron (O) was originally used in mathematics as a symbol for Big O notation, representing the asymptotic rate of growth of a function.

Representations

System Representation
959
UTF-8 CE BF
UTF-16 03 BF
UTF-32 00 00 03 BF
URL-Quoted %CE%BF
HTML-Escape ο
Wrong windows-1252 Mojibake ο
HTML-Escape ο
digraph o*
LaTeX o
Encoding: EUC-KR (hex bytes) A5 EF
Encoding: ISO-8859-7 (hex bytes) EF
Encoding: JIS0208 (hex bytes) A6 CF
Encoding: WINDOWS-1253 (hex bytes) EF

Related Characters

  • Ο
  • ό
  • ὀ
  • ὁ
  • ὸ
  • 𝚶
  • 𝛐
  • 𝛰
  • 𝜊
  • 𝜪
  • 𝝄
  • 𝝤
  • 𝝾
  • 𝞞
  • 𝞸

Confusables

  • o
  • ℴ
  • o
  • ø
  • œ
  • ơ
  • ɵ
  • ɶ
  • ο
  • σ
  • о
  • ѳ
  • ө
  • օ
  • ס
  • ه
  • ٥
  • ھ
  • ہ
  • ە
  • ۵
  • ०
  • ੦
  • ૦
  • ௦
  • ం
  • ౦
  • ಂ
  • ೦
  • ം
  • ൦
  • ං
  • ๐
  • ໐
  • တ
  • ဝ
  • ၀
  • ჿ
  • ᴏ
  • ᴑ
  • ᴔ
  • ℅
  • №
  • ℴ
  • ∞
  • ⒪
  • ⲟ
  • ꚙ
  • ꜵ
  • ꝋ
  • ꝏ
  • ꬽ
  • ꬾ
  • ﮦ
  • ﮧ
  • ﮨ
  • ﮩ
  • ﮪ
  • ﮫ
  • ﮬ
  • ﮭ
  • ﯬ
  • ﯭ
  • ﱑ
  • ﱒ
  • ﱓ
  • ﱔ
  • ﲛ
  • ﲠ
  • ﲥ
  • ﳍ
  • ﳖ
  • ﳗ
  • ﳘ
  • ﳙ
  • ﳞ
  • ﳠ
  • ﳢ
  • ﳤ
  • ﳦ
  • ﳨ
  • ﳪ
  • ﳯ
  • ﳱ
  • ﴱ
  • ﴲ
  • ﶓ
  • ﶔ
  • ﷲ
  • ﷷ
  • ﷺ
  • ﷻ
  • ﻩ
  • ﻪ
  • ﻫ
  • ﻬ
  • o
  • 𐐬
  • 𑣈
  • 𑣗
  • 𝐨
  • 𝑜
  • 𝒐
  • 𝓸
  • 𝔬
  • 𝕠
  • 𝖔
  • 𝗈
  • 𝗼
  • 𝘰
  • 𝙤
  • 𝚘
  • 𝛐
  • 𝛔
  • 𝜊
  • 𝜎
  • 𝝄
  • 𝝈
  • 𝝾
  • 𝞂
  • 𝞸
  • 𝞼
  • 𞸤
  • 𞹤
  • 𞺄

Elsewhere

Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) GREEK SMALL LETTER OMICRON
Unicode 1 Name (na1)
Block (blk) Greek
General Category (gc) Lowercase Letter
Script (sc) Greek
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) None
Decomposition Mapping (dm) ο
Lowercase (Lower)
Simple Lowercase Mapping (slc) ο
Lowercase Mapping (lc) ο
Uppercase (Upper)
Simple Uppercase Mapping (suc) Ο
Uppercase Mapping (uc) Ο
Simple Titlecase Mapping (stc) Ο
Titlecase Mapping (tc) Ο
Case Folding (cf) ο
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) ο
Bidi Paired Bracket Type (bpt) None
Cased (Cased)
Composition Exclusion (CE)
Case Ignorable (CI)
Full Composition Exclusion (Comp_Ex)
Changes When Casefolded (CWCF)
Changes When Casemapped (CWCM)
Changes When NFKC Casefolded (CWKCF)
Changes When Lowercased (CWL)
Changes When Titlecased (CWT)
Changes When Uppercased (CWU)
Dash (Dash)
Deprecated (Dep)
Default Ignorable Code Point (DI)
Diacritic (Dia)
East Asian Width (ea) Ambiguous
Extender (Ext)
FC NFKC Closure (FC_NFKC) ο
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base)
Grapheme Extend (Gr_Ext)
Hex Digit (Hex)
Hangul Syllable Type (hst) Not Applicable
Hyphen (Hyphen)
ID Continue (IDC)
Ideographic (Ideo)
ID Start (IDS)
IDS Binary Operator (IDSB)
IDS Trinary Operator and (IDST)
InMC (InMC)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Join Control (Join_C)
Jamo Short Name (JSN)
Joining Type (jt) Non Joining
Line Break (lb) Alphabetic
Logical Order Exception (LOE)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) ο
NFKC Quick Check (NFKC_QC) Yes
NFKD Quick Check (NFKD_QC) Yes
Numeric Type (nt) None
Numeric Value (nv) NaN
Other Alphabetic (OAlpha)
Other Default Ignorable Code Point (ODI)
Other Grapheme Extend (OGr_Ext)
Other ID Continue (OIDC)
Other ID Start (OIDS)
Other Lowercase (OLower)
Other Math (OMath)
Other Uppercase (OUpper)
Pattern Syntax (Pat_Syn)
Pattern White Space (Pat_WS)
Quotation Mark (QMark)
Radical (Radical)
Sentence Break (SB) Lower
Simple Case Folding (scf) ο
Script Extension (scx) Greek
Soft Dotted (SD)
STerm (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) ALetter
White Space (WSpace)
XID Continue (XIDC)
XID Start (XIDS)
Expands On NFC (XO_NFC)
Expands On NFD (XO_NFD)
Expands On NFKC (XO_NFKC)
Expands On NFKD (XO_NFKD)