| a line of the color red that is parallel to and equidistant from the goal lines and divides the rink in half. |

verb, -lined, -lin⋅ing, noun | 1. | to treat by redlining (an area or neighborhood). |
| 2. | to establish the recommended safe speed of (an airplane): The bomber is redlined at 650 miles an hour. |
| 3. | to draw a canceling red line through (an item on a list). |
| 4. | to mark or designate for cancellation, rejection, dismissal, or the like: club members redlined for unpaid dues. |
| 5. | to cause (an airplane) to be grounded. |
| 6. | to engage in redlining. |
| 7. | Automotive.
|