channel
In Italian, the word 'canale' is used to refer to a channel, which can be a waterway, a television or radio channel, or a communication channel. It is a noun that can be used in both formal and informal contexts. For example, 'Guardiamo il canale 5' means 'Let's watch channel 5'.
The canal is very wide.
This sentence is simply describing the physical width of a canal. In this context, 'canale' is used to refer to a man-made waterway.
Can you change the channel, please?
In this case, 'canale' is being used to refer to a television channel. The speaker is asking someone else to switch to a different channel.
The communication channel is open.
Here, 'canale' is used in a metaphorical sense to refer to a method or system of communication between two or more parties. It indicates that communication can occur freely.