in one leap; skipping intermediate steps; directly
Describes advancing to a higher level or stage without going through the usual intermediate steps. Often used with verbs like 進む, 上がる, or なる.
He jumped straight from regular employee to department head.
It's hard for a beginner to jump straight into an advanced course.
一気に means doing something in one continuous burst without pause, while 一足飛びに emphasizes skipping intermediate stages or levels.
飛び級 is a noun meaning grade skipping in school; 一足飛びに is an adverb used more broadly for any leapfrogging advancement.
Standard kanji spelling.
Rarely used kanji form; 飛び is the usual choice.
Compound of 一足 (one step) and 飛び (jumping), literally 'in one leap'. The adverbial form に indicates manner.