We don't have synonyms for step ladder yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are stepladder and sea ladder.
(n) :
A ladder with steps or treads instead of rungs that is hinged in the middle to form an inverted V, with stays to keep the two halves at a fixed angle.
(n) :
(Australian rules football, slang) The player over whom another player marks to take a spectacular mark.
(n) :
A ladder with steps or treads instead of rungs that is hinged in the middle to form an inverted V, with stays to keep the two halves at a fixed angle.
(n) :
(Australian rules football, slang) The player over whom another player marks to take a spectacular mark.