Is this considered a word?

[Curiousgeorgey]

Just curious really.

Dd almost 15 months imitates the noise of "yes please" but without actually saying anything. She'll hum the two seperate sounds.

For instance ill say "do you want a drink", she'll hum "yes please".

I suppose it could be

Actually I think I would count this as a word! She’s imitating a sound and using it correctly in context.

I wouldn't think humming ok no this context is a word. and why does it matter?