1

redline

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noun red·line \ˈred-ˈlīn\

Definition of redline

  1. :  a recommended safety limit :  the fastest, farthest, or highest point or degree considered safe; also :  the red line which marks this point on a gauge

1952

First Known Use of redline

1952


2

redline

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verb red·line \ˈred-ˌlīn, -ˈlīn\

Definition of redline

  1. intransitive verb
  2. :  to withhold home-loan funds or insurance from neighborhoods considered poor economic risks

  3. transitive verb
  4. :  to discriminate against in housing or insurance

1968

First Known Use of redline

1968



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