B3O1O1T1B3L1A1C3K5S1
20 points
BOOTBLACKS is validvalid
BOOTBLACK, one who polishes shoes [n]
BOOTBLACK, a person whose job is to clean and polish shoes [n]
BOOTBLACK, one who polishes shoes [n]
BOOTBLACK, a person whose job is to clean and polish shoes [n]