on the way

途上、途中、路上、道中

on the way の類語

en route, in production, under construction, in progress, going on, on the road, under way, in the works, in process, on stream, in preparation, in the oven, under revision, in hand, on the fire, brewing, forthcoming, in passing, in mid-progress, along the way, as one goes, on the anvil, move, in transit, in embryo, pipeline, on the wing, en passant

on the way の言い換えを探すには

on the way（途上）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。