This depends entirely on the context in which it is used. The most common usage I'm aware of is synonymous with "job description".
The Santa Fe Trail was used for commerce. The Oregon Trail was used for immigration.
Motorcycle saddlebags are used to store stuff in them. They are hung at the back of a motorcycle and have one bag on each side which is used to store important papers and other stuff.
The trails used are the: California trail, Sante Fi Trail, Old Spanish Trail, Mormon Trail, and the Southern Emigrant Trail.
oregon trail
Verilog is a hardware description language used to model electronic systems.
Butterfield Trail
pioneers used the santa fe trail for traveling
It means to have a horse used to going on the trail and used to the trees and won't spook from any unfamiliar sounds. Some may even be trained to jump any fallen logs or debris. But the whole purpose of trail rides are so you get to know your horse and become friends with it.
They have no specific meaning. The order of letters and numbers are used to generate the largest number of possible combinations.
the calfornia trail
Yes they can, that's the whole point of a trail horse, a trail horse is a horse used to go on trail rides.