blue line

American  

noun

Ice Hockey.

1. either of two lines of the color blue that are parallel to and equidistant from the goal lines and divide the rink into three zones of equal size.

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Etymology

Origin of blue line

First recorded in 1925–30

Example Sentences

The U.S. finally found one midway through the second period with Larkin, a Detroit Red Wings’ forward, deflecting in a one-timer from Jack Hughes at the blue line.

From Los Angeles Times • Feb. 18, 2026

So when they did finally turn him out, he dragged himself to the blue line, and got on without paying, and he didn’t see any cops, and he didn’t get arrested.

From Slate • Jan. 27, 2026

They were 28 seconds away from winning when Evan Bouchard blasted a slap shot by Kuemper from just inside the blue line, capping a wild third-period rally.

From Los Angeles Times • Apr. 28, 2025

The last time I visited, I sat by the window, with the blue line buzzing overhead, and slipped one of those postcards into an envelope addressed to one of my closest friends in California.

From Salon • Apr. 10, 2025

It was on the green line and on the blue line.

From "The London Eye Mystery" by Siobhan Dowd