also: せっかい
noun
stone steps; stone staircase
Refers to a flight of steps made of stone, often found in gardens, temples, or traditional settings.
古い神社の石階を登った。
I climbed the stone steps of the old shrine.
階段 is the general word for stairs or staircases, while 石階 specifically refers to stone steps.
Compound of 石 (stone) and 階 (storey, stairs). The reading いしばし is a kun'yomi compound; せっかい is the on'yomi reading, rarely used.