桟 （サン） frame (i.e. of a sliding door), crosspiece, bar, sliding wooden bolt (for holding a door or window shut), rung (of a ladder)

桟橋 （サンバシ） wharf, bridge, jetty, pier

障子の桟 （ショウジノサン） frame of a shoji (paper sliding-door)

窓の桟 （マドノサン） window frame, window sill

懸け橋 （かけはし） temporary (suspension) bridge, makeshift bridge, bridge (between cultures, generations, etc.), link, go-between, intermediary, walkway (constructed on a cliff face), plank path