θ (EN)

letter, symbol

letter “θ”

1. the 8th letter of the Greek alphabet
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   The letter θ is pronounced with “th” as in “think”.

symbol “θ”

1. (in mathematics) a variable representing an angle, especially in trigonometry and polar coordinates
   To find the value of θ, solve the equation cos θ = 0.5.
2. (phonetics) the symbol representing the voiceless dental fricative consonant sound, as in 'thin' and 'thank'
   In the word "think", the "th" sound is written as θ in phonetics.