A tidal lock provides access for boats through the Eider Barrage.

What it does have is a tidal lock on Luna; the forward end points forever straight down at the Moon.

This means that one side of the moon always faces the planet; a condition known as tidal lock.

Because the moon was in tidal lock, Safe Harbor permanently occupied the same position overhead.

Like the other moons, it was caught in tidal lock, always presenting the same face to the cloud.

The world got its name because it had achieved tidal lock, so the sun, viewed from the surface, "just sat there, doing nothing."

And preferably, yes, it should have some sort of day-night cycle rather than a pure tidal lock.

Wolf has an ocean, too, and a biosphere, and a mean case of tidal lock.

The terrified expression of the dead man held him in a kind of tidal lock.

Pluto and Charon are an extreme example of a tidal lock.