| A | B |
|---|
| pentagon | a five-sided shape |
| unicellular | refers to an organism that has only one cell |
| heptagon | a seven-sided shape |
| octagon | an eight-sided shape |
| nonagon | a nine-sided shape |
| decagon | a ten-sided shape |
| biathlon | two athletic events in a race |
| triathlon | three athletic events in a race |
| pentathlon | five athletic events in a race |
| decathlon | ten athletic events in a race |
| triplets | three babies born at the same time |
| quadruplets | four babies born at the same time |
| quintuplets | five babies born at the same time |
| sextuplets | six babies born at the same time |
| septuplets | seven babies born at the same time |
| octuplets | eight babies born at the same time |
| duet | two musicians together |
| trio | three musicians together |
| quartet | four musicians together |
| quintet | five musicians together |
| sextet | six musicians together |
| octet | eight musicians together |
| monolingual | speaking one language |
| bilingual | speaking two languages |
| trilingual | speaking three languages |
| duplicate | two of the same copy |
| triplicate | three of the same copy |
| bisect | cut into two sections |
| trisect | cut into three sections |
| octogenarian | an eighty year old person |
| unicycle | a one-wheeled cycle |
| monorail | one railroad track |
| triceratops | a dinosaur with three horns |
| quad | a four-wheeled vehicle |
| monologue | a speech or talk given by one person |
| biplane | an airplane with two sets of wings |
| hexagon | a six-sided shape |
| monotone | speech that has only one pitch--sounds like a robot |
