Beta

History Diacritics and other symbols Related topics

• Use as scientific symbols
• Orthography
• Romanization
• Cyrillization

Beta (UK: , US: ; uppercase Β, lowercase β, or cursiveϐ; Ancient Greek: βῆτα, romanized: bē̂ta or Greek: βήτα, romanized: víta) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Ancient Greek, beta represented the voiced bilabial plosiveIPA:. In Modern Greek, it represents the voiced labiodental fricativeIPA:, while IPA: in borrowed words is instead commonly transcribed as μπ. Letters that arose from beta include the Roman letter ⟨B⟩ and the Cyrillic letters ⟨Б⟩ and ⟨В⟩.