An event that occurs every 100 years, a 100th anniversary
centennial
A unit of length in the metric system; it takes 100 to equal 1 meter
Centimeter
An Arthropod with perhaps 100 legs
Centipede
A period of 100 years
Century
A period of ten years
Decade
A polygon with ten sides and ten angles
Decagon
An athletic contest consisting of ten different events
Decathlon
A number using the base of ten; a part of a whole based on groups of ten
Decimal
cent, centi
Hundred
dec, deca
ten
penta
five
oct
eight
sol, soli
one, only, alone
A polygon with five sides and five angles
pentagon
An athletic contest consisting of five different events
pentathlon
A shape with eight sides and eight angles
octagon
A group or series of eight; in music, a tone eight degrees higher or lower than the other one
octave
A group of eight; eight musicians
Octet
A mollusk with eight tentacles
octopus
A game played by one person
solitaire
Isolation; seclusion; the state of being alone
solitude