Part of speech: noun

Geom. A figure with eight sides and eight angles.

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Usage examples "octagon":

  1. Then we lowered the timbers lengthwise inside the cable, which we could do because the steeple was an octagon with ornamented corners, and these left spaces where the wire rope was stretched around. - "Careers of Danger and Daring", Cleveland Moffett.
  2. For answer his lips press hers in a long kiss, and she is taken up in his strong arms and not loosed until the ascent is made and the octagon room reached; there he leads her to a seat, and throws himself on a cushion at her feet. - "A Heart-Song of To-day", Annie Gregg Savigny.
  3. The four columns at the crossing which support the octagon are of larger dimensions than those in the nave. - "Cathedral Cities of Italy", William Wiehe Collins.