The word "Knapbottle" might look like a jumble of letters, but its pronunciation can be easily deciphered using the International Phonetic Alphabet (IPA). The first syllable "knap" is pronounced with a voiceless velar stop /k/ followed by a nasal /n/. The second syllable "bot" starts with a voiced bilabial plosive /b/, followed by a tongue touch between the upper and lower teeth, transcribed as /θ/. The final syllable "tle" is pronounced as a flap /ɾ/ followed by a silent /əʊ/. Together, the IPA transcription provides a clear guide to the correct spelling and pronunciation of "Knapbottle."
A plant.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.