C3U1S1T1O1M3S1H4O1U1S1E1S1
20 points
CUSTOMSHOUSES is validvalid
CUSTOMSHOUSE, [n]
CUSTOMSHOUSE, an office or residence for customs officials, also CUSTOMHOUSE [n]
CUSTOMSHOUSE, [n]
CUSTOMSHOUSE, an office or residence for customs officials, also CUSTOMHOUSE [n]