lead off

1. PHRASAL VERB

If a door, room, or path leads off a place or leads off from a place, you can go directly from that place through that door, into that room, or along that path.     

• There were two doors leading off the central room.     
• The treatment rooms lead off from the swimming pool.

2. PHRASAL VERB

If someone leads off in an activity, meeting, or conversation, they start it.     

• Whenever there was a dance he and I led off.     
• Boren surprisingly led off the most intensive line of questioning today.     
• = start off   

.... Cobuild