Re: What is "Aikido"?
In Mandarin it comes out as "He Qi Dao". In discussions with Korean nationals (in Mandarin...long story) we would always differentiate btw "Hanguo de He Qi Dao" and "Riben de He Qi Dao" , i.e "korean aikido" and "japanese aikido."
As to "what is" ºÏÆøµÀ"£¬I'd say, it's manipulating the feeling of pressure (i.e. ki) in your body, so that it pervades every joint. Then, on contact with your opponent, you "harmonize" by keeping your pressure, which means that as you make a structure to structure connection (say a wrist grab) your structure displaces that of your opponents, assuming you have a stronger structure than they do, or you find the weakest link in their structure and break them down in that direction.
Now can I do this yet? No. Only in a limited direction. But check back with me in a few years and hopefully the answer will be yes.