ジャンボ
ジャンボ · janbo · JLPT N1 · na-adj
jumbo
✈️ ジャンボ sounds like 'jumbo' itself: a jumbo jet is 'janbo jetto', so say 'jumbo' and you have the word.
Japanese borrowed the English 'jumbo' and rendered it as ジャンボ. Ja-n-bo maps almost directly onto jum-bo, so the sound is the hook.