Why do English people pronounce 'sixth' as 'sicth'? [duplicate]
If I am not mistaken, the usual Irish-English pronunciation of “sixth” is [sɪkst] with the famous shift of [θ] to [t]. In England this word is pronounced as [sɪksθ], but I can imagine that some speakers of Irish English might have difficulty distinguishing [sθ] from [θ], as these sounds do not occur in their own dialect.