1.
step stool, footstool
A small platform or stool used to reach high places or to step up onto something.
2.
stepping stone, springboard
Something or someone used as a means to achieve one's own goals. Often has a negative connotation when referring to using people.
踏み台 refers both to physical step stools and figuratively to stepping stones for advancement.
Common collocations
- 踏み台にする (use as a stepping stone)
- 踏み台に乗る (stand on a step stool)
- 人を踏み台にする (use someone as a stepping stone)
Usage note: When used figuratively (sense 2), especially with people, this word often carries a negative connotation of exploiting others for personal gain.