Date

1. The fruit of the date palm. We often use dates in salads.
2. The date palm itself. They planted many dates at the oasis.
3. To note or fix the time of, as of an event. The time stamp dated the event.
4. To determine the age of something. Tree rings can date the age of a tree.
5. (of a couple) To have a steady relationship with, to be romantically involved with. We dated for a year before marrying.