Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun octad
1 sense of octad
Sense 1
eight, 8, VIII, eighter, eighter from Decatur, octad, ogdoad, octonary, octet -- (the cardinal number that is the sum of seven and one)
=> digit, figure -- (one of the elements that collectively form a system of numeration; "0 and 1 are digits")