Pole star
/ˈpəʊl stɑː/
"Pole star" in a Sentence (4 examples)
Polaris is currently the pole star of planet Earth.
Who can doubt that poetry will revive and lead in a new age, as the star in the constellation Harp, which now flames in our zenith, astronomers announce, shall one day be the pole-star for a thousand years?
But it [our hotel] has one great advantage for a stranger, by being in the market place, and the next neighbour of the huge church of St. Nicholas: […] A better pole-star could scarcely be desired.
Love was her pole-star. What was Jason's? Only the blankness of despair.