long (distance, length)
measuring a great distance from end to end

check the related keyword:
long (time)

measure

great

distance

long
length

long-distance

long-distance running

marathon
a long-distance running race

to conquer
go on an expedition
go on a long journey

expedition
long journey

expedition
long journey

to trek
to trudge
arduous trek
long journey on foot
travel over land and water
go on a long arduous journey, typically on foot

to travel
to journey
make a journey over a
long period or a great distance

very far away
walk long distance

remote
faraway
long way away
out-of-the-way
far and distant

a heavy load and a long road
the burden is heavy and the road is long
take a heavy burden and embark on a long road
bear heavy responsibilities through a long struggle

traveling faraway
go on a long journey
journey to a distant place

long jump
broad jump
(in track and field)

long distance destined marriage
thousands of miles marriage accompany
people a thousand miles apart may be linked by marriage

long narrow strip or piece
something longer than its width

streamer
long narrow flag
a long, narrow strip of material
used as a decoration or symbol