Editing Theta (section)

{{Short description|Eighth letter of the Greek alphabet}}
{{About|the Greek letter}}
{{Redirect|θ|the letter used in IPA|Voiceless dental fricative}}
{{Distinguish|Fita|Latin theta|Oe (Cyrillic)}}
{{for|similar symbols|Ø (disambiguation)}}
{{More citations needed|date=April 2009}}

{{Greek Alphabet|letter=theta}}

'''Theta''' ({{IPAc-en|UK|ˈ|θ|iː|t|ə|audio=LL-Q1860 (eng)-Flame, not lame-Theta.wav}}, {{IPAc-en|US|ˈ|θ|eɪ|t|ə}}) uppercase '''Θ''' or '''{{not a typo|ϴ}}<!--U+03F4 GREEK CAPITAL THETA SYMBOL -->'''; lowercase '''θ'''{{Efn|which resembles digit [[0]] with a horizontal line.|group=note}} or '''{{not a typo|ϑ}}'''; {{langx|grc|{{linktext|θῆτα}}}} ''thē̂ta'' {{IPA|el|tʰɛ̂ːta|}}; [[Modern Greek|Modern]]: {{lang|el|{{linktext|θήτα}}|}} ''thī́ta'' {{IPA|el|ˈθita|}}) is the eighth letter of the [[Greek alphabet]], derived from the [[Phoenician alphabet|Phoenician letter]] [[Teth]] 𐤈. In the system of [[Greek numerals]], it has a value of 9.