There seems to be no standard spelling for the word "stilley". However, based on IPA phonetic transcription, it could be spelled as "/ˈstɪli/". The first syllable is pronounced with the "ih" sound, while the second syllable is pronounced with with the "ee" sound. The word "stilley" might refer to a surname or a colloquial term with an unclear meaning. Without context, it is difficult to determine the intended usage and spelling of the word.