What is the main difference between the Tagalog language and Filipino language?

Filipino is the national language of the Phillippines, and is based on Tagalog. Filipino is supposed to be "Tagalog plus", incorporating some Western and Spanish words. Originally, Tagalog was a language spoken in the Manila area. Other languages were spoken in other areas, but the use of Tagalog spread over the years, making it more acceptable as a basis for the national language. Filipino and Tagalog do not fit the model of a single language that has several dialects--versions of the language spoken by different groups. However, in the sense that Filipino is agreed to be the standard language (taught in school, etc.) then you could call Tagalog a dialect. Remember, "A language is a dialect with an army and a navy. more