What does Logos mean?

And the Reason became flesh and tabernacled among us (and we beheld His glory, glory as the only Begotten from the Father), full of grace and reality.How's that communicate?

I didn't think it was too bad. Why didn't you think it works well?
I checked my Weymouth translation of the New Testament and in a note he did indeed include Reason or Purpose as legitimte words philosophically equivalantly conveying Logos according to Greek and Jewish (Philo's) philosophy.

Try this: If Logos is supposed to refer to the 2nd person of the Trinity, I don't think "word" as a definition would fit. He didn't bring word down. Man already had word.

That is true. But I think John's purpose is to show that what Christ is is what is needed by man because whatever man has has been damaged. Notice the phrase "And the light shines in the darkness, and the darkness did not overcome it." (1:5) Here the darkness has a definite negative sense to it. Something is even opposing the light from shining.