At a further frontier is political equality, namely the right to express opinions, to vote, and to hold office.

Perhaps along their far frontier, away from the Federation border.

By 1822 he was working as an independent trapper, and also guided travelers through the far western frontier of the time.

Now another group appeared at the far frontier of the star system, still an hour distant.

We live at the farthest frontier of time itself, and all the ages belong to us.

These steps will allow us to lead toward the far frontiers of science and technology.

Being a country boy from the far frontiers I'm obviously missing some critical local angle.

It was time for the covered wagons and settlement of the far frontier.

And now, when it finally had recovered, here was another war on the far frontier of the kingdom.

Looking at his pictures, we approach the farthest frontiers of a necessary joy.