Some of them are down low, traveling horizontally, and others are up high, plunging nearly straight down.

Roberta couldn't tell if they were travelling horizontally, vertically, or both.

She was nearing her closest approach, travelling almost horizontally.

But torpedoes were big, and heavy, and needed to travel horizontally.

It was just as if they were traveling horizontally, thanks to the magic.

You can increase your chances of success by raising the kicking foot sufficiently for it to travel horizontally into the target.

But how was it possible to travel horizontally and arrive vertically?

Depending on the type, front curtains may travel horizontally or vertically.

The mirror-sided building didn't offer enough handholds for vertical movement, but with care she could travel horizontally.

Leaders form in the anvil of the cumulonimbus and may travel horizontally for several miles before veering towards the ground.