Age-related:
* Year old
* Month old
* Week old
* Day old
* Hour old
* Minute old
* Second old
Other words:
* Fold (to bend or double)
* Hold (to grasp or contain)
* Mold (a type of fungus)
* Sold (past tense of sell)
* Told (past tense of tell)
Let me know if you have any other questions!