lead through

lead through (third-person singular simple present leads through, present participle leading through, simple past and past participle led through)

1. (climbing) To take turns leading an expedition.
   • 1946, Scott C. Russell, Mountain Prospect, page 98:

     We 'led through', each in turn climbing to the full length of the rope, and then belaying […]

   • 1964, Showell Styles, Modern Mountaineering, page 128:

     The climbing was nowhere difficult, perhaps only Moderate by British standards, but it was sometimes exposed. We led through, taking it in turns to lead alternate pitches. Probably a guide would have moved up continuously, […]

   • 1967, Anthony Greenbank, Instructions in Mountaineering, page 84:

     You lead "through" instead — your companion leads a pitch, then you join him. But instead of swapping over at the ice axe belay, you carry on in the lead, cutting or kicking steps until you are about twenty feet above.