No, it is Tagalog/Pilipino
....But a lot of Spanish words were incorporated, I believe....
Second question, what is the best/least expensive way to keep your miles from expiring?
For United, you can reset the expiration clock to 18 months hence by either earning or redeeming miles. There are hundreds of ways to do this. Which one is "best/least expensive" probably depends on your particular situation.
So, 1) take a look at the United web pages where it shows you all the ways you can earn and redeem miles:
Earn:
http://www.united.com/page/article/1...itle=earnmiles
Redeem:
http://www.united.com/page/article/0...le=redeemmiles
Just one example: if you shop at Safeway/Pavilions/Dominicks/Vons/etc. (i.e., in the same grocery chain), you can register your club card to give you 125 UA miles every time you hit $250 worth of purchases (some types of items excluded). That's a handy way to ensure your miles don't expire even without flying.
If your miles are about to expire, you can donate 1,000 of them to one of the charities on the United website (see "Redeem" link above; look for "Charity Miles") to reset the expiration clock.
And 2) also check the FAQ sticky on the United forum.
Also, when Delta and NWA merge, will the miles automatically merge, or will some type of action be required by me?
Probably best to look on 1) the respective airlines' websites, and/or 2) the FlyerTalk forums for those airlines. The answer is probably already posted!