Aviation
Automobile
Airplane
(see Related Question below also)
it starts when science formed......
[object Object]
Xenophonic
Helicopter
Biotech
cryogenics
zipper
If an object starts to accelerate, it is called gaining speed or increasing its velocity. Acceleration is the rate at which an object's velocity changes over time.
Ukulele is an object. Umbrella is an object.
manicure
atom bomb
xanergy