air lane
air line
axis
beat
beeline
bypass
chord
circuit
course
cut
cutoff
diagonal
diameter
direct line
directrix
edge
flight path
great-circle course
itinerary
line
normal
orbit
path
perpendicular
primrose path
radius
radius vector
right line
road
round
route
run
sea lane
secant
segment
shortest way
side
straight
straight course
straight line
straight stretch
straightaway
streamline
tangent
tour
track
trade route
traject
trajectory
trajet
acrobat
config
cursor
drop-down
shortcuts
taskbar
toolbar
xpress