Genesis 2:20

"So the man gave names to all the livestock, the birds of the air and all the beasts of the field."

"But for Adam no suitable helper was found."  Genesis 2:20

Before woman was created, God brought every living creature to man, except the fish, it appears.  And from all those animals, not even the dog was a suitable helper for the man, but even so man did his job and named all the creatures.

The QBible also translates "names" as "character" so the names man gave the animals also defined their character. 

Here's another article that talks about the names, but it goes on to say "Adam was able to perceive the spiritual components of the creative spirit that brought every animal into being, and named each animal in conjunction with its spiritual configuration."  This article also implies that Hebrew was the original language.  It seems more likely to me that the original language was lost at the tower of Babel mentioned in Genesis 11.  However, the idea that Adam could perceive the spiritual components of the animals and name them according to that does seem to fit. 

It is curious that it doesn't mention the fish at all here.  Were fish not important enough to name?  Or was just knowing that as one broad category good enough?