1. to refuse to provide loans or insurance to people in certain areas, especially minority neighborhoods
Usage: banking; insurance
2. to mark with a red line, especially to indicate corrections or deletions
3. to operate an engine at maximum speed
Usage: automotive

1. plural of redline; red lines drawn on maps or documents

Examples

• The bank was accused of redlining certain neighborhoods based on racial demographics.
• Insurance companies cannot legally redline areas based on ethnicity.
• The editor redlines several paragraphs that need revision.
• He redlines the engine during the race.
• The mechanic warned against redlining the motor too frequently.
• The document showed redlines marking all the proposed changes.
• Historical redlines on city maps revealed patterns of discrimination.