The number 3. It comes after two and before four.

The 'th' sound in 'three' is the voiceless dental fricative /θ/ — place your tongue between your teeth and blow. This sound is common in English but rare in many other languages. Practice: think, thank, thirty, three.

The number three appears frequently in English culture and stories: three wishes, three little pigs, three blind mice, Goldilocks and the three bears. 'Third time lucky' means that after two failures, the third attempt will succeed.