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Use "octads" in a sentence
"As Theor helped Norlak deploy three octads of pike wielders on the foredeck, his hunter's hearts rallied within him."
"And do you know how many octads of years it would take to clear enough land for even the scantiest ranching?"
"Theor gazed at the looted ruin of a fisher town, the fifteen or more octads of lean dark ships lying at anchor, the army of giants ashore who swarmed into formation as his own folk approached."