| A | B |
| Anachronism | anything out of its proper time |
| Chronicles | the historical account of events of a particular time |
| Chronic | lasting for a long time |
| Chronometer | a timepiece (watch, clock) |
| Temporary | Lasting only a short time |
| Extemporaneous | given without time to prepare; spur of the moment |
| Contemporary | Someone living at the same time |
| Tempo | the pace of a piece of music |
| Synchronize | to cause to happen at the same time |
| Tempest | a violent storm lasting for a period of time |