| 100% | ERAS | 4 | Periods divide them |
| 64% | AIRMASSES | 9 | Fronts divide them |
| 59% | EPOCH | 5 | Period divided into ages |
| 56% | ERAS | 4 | Revolutions can divide them |
| 53% | YRS | 3 | Time periods divided into months: Abbr. |
| 53% | TOES | 4 | A flip-flop sandal divides them |
| 53% | TRACKS | 6 | They sometimes divide neighborhoods |
| 53% | CELLS | 5 | They multiply by dividing |
| 52% | URALS | 5 | They divide Europe and Asia |
| 52% | EPOCHS | 6 | They're shorter than periods |
| 52% | SENTENCES | 9 | They're separated by periods |
| 49% | OTS | 3 | They may follow last periods, for short |
| 49% | YRS | 3 | They're divided into 3-Down qtrs. |
| 49% | ACTS | 4 | Plays are divided into them |
| 47% | ERA | 3 | Geological time, divided into several periods |
| 47% | POLO | 4 | Sport divided into periods called chukkers |
| 47% | POLO | 4 | Game divided into periods called chukkers |
| 47% | FADS | 4 | They're very popular for a short period |
| 46% | DATES | 5 | They can be written with slashes, dashes, or periods |
| 46% | AMOEBAS | 7 | When they divide they multiply |
| 43% | SEASONS | 7 | The four periods that a year is divided into |
| 43% | ACTS | 4 | A musical is often divided into two of them |
| 43% | DYNASTIES | 9 | Ancient Egypt history is divided into 31 of them |
| 43% | ACTS | 4 | Shakespeare plays are typically divided into five of them |
| 43% | CENTIMES | 8 | The French franc was divided into 100 of them |
| 43% | ACTS | 4 | Shakespeare's plays are divided into five of them |
| 41% | THESPOILS | 9 | They're divided by victors, and divided in four rows of this puzzle |
| 39% | OTS | 3 | 10-minute NFL periods, if they last that long |
| 33% | ANTS | 4 | Them in "Them!" |
| 33% | ANTS | 4 | Them, in "Them!" |