| Echeverias are polycarpic, meaning that they may flower and set seed many times over the course of their lifetimes. |
| He is right to say that this is the most momentous election of our lifetimes. |
| Despite this bombardment, all ring moons have erosional lifetimes that exceed the solar system's age. |
| It was not Alvin's intention to foreclose the possibility of his children ever buying a home of their own in their lifetimes. |
| There was a lifetimes worth of knowledge, all crammed into a room's worth of books. |
| Only one in five elite Marylanders contracted debts during their lifetimes that forced the selling of land or slaves. |
