The spelling of the word "silk" is straightforward: S-I-L-K. However, adding the suffix "-en" changes the pronunciation, resulting in "slilken". The IPA phonetic transcription of this word is /ˈsɪlkən/, with the stress on the first syllable. The double "l" in "slilken" indicates a short vowel sound in the first syllable. The "e" at the end of the suffix is silent, indicating that the stress falls on the syllable before it.