Question

other word for trajectory and pls explain this word

Answer 1

Path, curve, orbit, route
The curve described by a projectile, rocket or the like in its flight
Geometrically speaking; a curve or surface that cuts all the curves or surfaces of a given system at a constant angle
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Answer 2

curve
orbit
path

direction
flight
flow

line
movement
range

route
track
trail

Answer 3

Work cited- http://thesaurus.com/