These 2 words mean the local actual thing. In the Lean world the phrase is used to represent the idea of go and see. True improvement requires leaders, managers, c-suites to be involved. The idea is you cannot know what change needs to happen unless a leader experiences and sees what is happening in real time on the "shop floor", where the work is done, at the frontline. I like the phrase "lead from your feet not from your seat". We'll have some more so keep listening to Lean Lingo from leanbeanlearning.com.