The word "blackley" is spelled as /blækli/. The first syllable "blac" is pronounced with a short "a" sound as in "cat" and a hard "c" sound as in "can". The second syllable "kley" is pronounced with a combination of the "k" and "l" sounds, followed by an "e" sound as in "bed". The spelling of "blackley" follows the English language phonetic rules of combining letters to represent the sounds in a word.