'Straight' in the Bible

Their legs were straight, but the soles of their feet were like calves' feet. They gleamed like polished bronze.

their wings touched each other; they did not turn as they moved, but went straight ahead.

Each moved straight ahead -- wherever the spirit would go, they would go, without turning as they went.

As for the form of their faces, they were the faces whose appearance I had seen at the Kebar River. Each one moved straight ahead.

"'When the people of the land come before the Lord at the appointed feasts, whoever enters by way of the north gate to worship will go out by way of the south gate; whoever enters by way of the south gate will go out by way of the north gate. No one will return by way of the gate they entered but will go out straight ahead.