Constitution of Biak-na-Bato:  The Constitution of the Philippines and is the supreme law.

Filipino/Pilipino: Another name for Tagalog

Dialects: A form of a language that is only spoken in one area and is similar to other dialects around it

Doctrina Cristiana: Where Tagalog and Baybayin was first discovered and it was also written in Spanish and Latin

Loanword: A word taken from another language

Alibata: Another name for Baybayin from Professor Paul Versoza

 Resources:

Constitution of the Philippines. Wikipedia, 21 Nov. 2011. Web. 24 Nov. 2011. http://en.wikipedia.org/wiki/Constitution_of_Biak-na-Bato

Longman English Dictionary. N.p., n.d. Web. 24 Nov. 2011. http://www.ldoceonline.com/