Say What?

We have been working on Word approximations with Ben- basically a simplified version of a word using the sounds he knows.
As his mother I generally understand most of his vocabulary, but most people probably wouldn't. The good news is that he is improving.
Here's what he calls all of us:

Dad: "Da-ee"

Mom: "Mum"

Afton: "Girl"  

(we tried just an 'aaafff", but he settled on girl instead)

Madelyn: "Mei"

(the only problem here is that Mei no longer wants to be called Mei, she's 'Mad a win')

Ben: "Do"

(I think he was trying to say Ben, but it came out as 'Do", so we decided we'll just start calling him 'dude" and he thinks it's pretty funny.)

Ethan: "Bay-ee"

The speech therapist recommended that we keep accurate notes on progress. She thinks he'll probably have spurts where he gains a lot and then slows down. I will say we've seen an improvement since we have started really working with him and since adding fish oil to his diet.