noun, adverb
1000 ri; a long distance
Often used figuratively to emphasize great distance or vastness. The ri is an old unit of length (about 3.9 km), so 1000 ri is roughly 3900 km, but the word is used for any very long distance.
千里の道も一歩から。
A journey of a thousand miles begins with a single step.
彼は千里を走って故郷に帰った。
He ran a long distance to return to his hometown.