Root Words hex/sex, sept, hex

a 2-dimensional figure that has six angles and six sides

• Hexagon

• Sextant

• September

• Octagon

a sixth of a circle; an instrument used to determine the position of a shipor airplane by measuring the positions of the stars and sun

• Hexagon

• Sextant

• Octave

• Octopus

The ninth month of the year, formerly the seventh

• Septet

• Hexagon

• September

• October

lasting for seven years; happening once every seven years

• September

• Septennial

• Octave

• October

a group of seven singers or musicians who perform together; a piece of music that is meant to be performed by seven people

• Septuagenarian

• Octopus

• October

• Septet

a person who is between 70 and 79 years old

• Septuagenarian

• October

• Octopus

• Sextant

The ninth month of the year, formerly the seventh

• October

• July

• September

• Hexagon

lasting for seven years; happening once every seven years

• Septuagenarian

• Septet

• Hexagon

• Septennial

a flat shape that has eight sides and eight angles

• Octagon

• Octopus

• Septet

• Circle

a group of eight, such as eight lines or eight musical notes

• Octopus

• Hexagon

• Octave

• Septet