Channel
Definition 1 of 5
Pro Tip 1/2
Not Always Water
While often for liquids, 'channel' can also refer to pathways for other substances or objects. The scientist designed channels for the sand to flow through.
Pro Tip 2/2
Metaphorical Use
'Channel' can be used metaphorically to describe the path of abstract things like ideas. They opened a channel for discussion among the employees.