An alternate possible entrance was suggested by a visible door, or transparent sealed window, of ice, fitted neatly into a thick wall of the same material.

Fallon learns that her half-sister, Krystina, has found an alternate entrance to the mine.

When they reached the Black Gate and found it well-guarded, Gollum offered to lead them toward an alternate entrance into Mordor.

The platform extends northwest from the main station house with an alternate entrance from Madison Avenue near West 65th Street.

The tour enters the factory through an alternate entrance located in the bakery, going down a spiral ladder 25 feet into the ground.

For example, had the bookstore shown in the photo (page 6, bottom right) not had an alternate entrance that was accessible, a lift could have been installed.

Each seal has several breathing holes, just as a fox makes an underground burrow with several foxholes as alternate entrances.

Barriers are also planned at alternate entrances at Farragut North and Metro Center.

There is an alternate entrance to our caves which we should be using.

No one else was likely to follow precipitously - unless there were an alternate entrance.