Witty Kid

While having breakfast this morning, my four year old daughter was talking to her dad.

Georyl: How do spell hug?
Daddy: H-U-G, hug.
Georyl: How about fog?
Daddy: F-O-G, fog.
Georyl: They rhyme.
Mommy: What do you mean by rhyme?
Georyl: I don’t know.
Mommy: It means, they have similar sounds.
Georyl: RIGHT Similar. (to daddy) What is similar???