Tailwind (noun)

A wind that blows in the same direction as a moving object, such as an aircraft or a runner, providing additional speed and support.

Origin:

Mid 17th century, from tail + wind.

Examples:

1. The airplane had a strong tailwind, which allowed it to travel faster and reach its destination sooner.
2. The runner was grateful for the tailwind, which made it easier for him to maintain his pace and conserve energy.
3. The sailor was disappointed to find that there was no tailwind to help him reach his destination more quickly.
4. The skydiver was relieved to have a tailwind, which slowed her descent and allowed her to make a safe landing.
5. The bicyclist was happy to have a tailwind, which allowed him to make better time and reach his destination earlier.