Buckingham Palace Reception for World Leaders Ahead of Tomorrow's State Funeral For The Queen

What do you think the response 'Yeah.' signifies in a conversation?

In what contexts might someone respond with 'Yeah.'?

How does the tone of the word 'Yeah.' change its meaning?

Can 'Yeah.' be considered a complete answer? Why or why not?

What emotions or attitudes might be conveyed through the response 'Yeah.'?