| 100% | LONGAGOG | 8 | Eagerly excited for an extended period of time? |
| 73% | OVERTHELONGHAUL | 15 | For an extended period of time |
| 73% | OVERTHELONGRUN | 14 | For an extended period of time |
| 50% | LONGRUN | 7 | Extended period of time |
| 48% | ERAS | 4 | Extended periods of time, in history |
| 48% | HAUL | 4 | --> extended period of time |
| 45% | RUNUP | 5 | Period of time before an important event |
| 45% | ERA | 3 | Period of time often named for a president |
| 45% | BRIEFLY | 7 | For a short period of time |
| 45% | ERA | 3 | Historical period of time, for one |
| 44% | ERA | 3 | Period of time that's shorter than an eon |
| 44% | EON | 3 | Period of time from the Greek word for "life" |
| 44% | ERA | 3 | A period of time, Victorian, for one |
| 44% | ERA | 3 | Historical period of time, Victorian, for one |
| 44% | EONS | 4 | Periods of time that can last for billions of years |
| 43% | MOMENT | 6 | A very short period of time, an instant |
| 43% | ERA | 3 | Long periods of time, "The end of an ___" |
| 42% | ERA | 3 | Period of time that may be named for a king or queen |
| 42% | ERA | 3 | A historically significant period of time, the end of an ___. |
| 42% | JIFFIES | 7 | Informal word for very short periods of time |
| 42% | TERM | 4 | Fixed and an official period of time |
| 41% | TENURE | 6 | Time period of holding an office |
| 41% | AEON | 4 | An indefinitely long period of time |
| 40% | LEASE | 5 | Rent out, for a specified period of time |
| 40% | EON | 3 | Time period, or an anagram of one? |
| 40% | THEGRATEFULDEADLINE | 19 | Extended time for an appreciative writer? |
| 40% | YRS | 3 | Time periods consisting of twelve months, for short |
| 39% | INLIMBO | 7 | Left unresolved for an indefinite amount of time: 2 wds. |
| 38% | PROJECT | 7 | Something worked on for a period of time |
| 38% | FASTING | 7 | Abstaining from food for a period of time |