Spanish term (edited): Cosmovisi�n

Aquí hay algunas definiciones de Worldview en la web

Worldview

The composite set of presuppositions, beliefs, and values a person possesses that shape how he or she see reality and determines how he or she will act. It refers to the collective set of fundamental convictions people hold and on which they base their actions.
www.lifeway.com/CurriculumGuide/Glossary.asp


overall perspective from which one sees and interprets the world; a collection of beliefs about life and the universe
www.teachingaboutreligion.org/MiniCourse/glossary.htm


(lifeview): A set of assumptions and perspectives that are true, partly true or completely false, which we hold consistently or inconsistently, consciously or unconsciously, through which we make sense of our lives and our world. This is the case for individuals and collectively for a society or culture, as well.
www.biggerpicture.org/definiti.htm


A person's (often unverbalized) overall evaluation of life, the universe, or the very essence of existence as being essentially positive or negative. A person with a positive worldview sees life as basically good, secure, friendly, happy, or unthreatening, or having some other positive valence. For a person with a negative world view, on the other hand, life is seen as essentially bad, insecure, threatening, unpleasant, hostile, uncertain, and/or full of many dangers. Worldview, then, is a judgment individuals make about the quality of existence. It is not to be confused with one's empirical knowledge of social, economic, political, or other events. (See mental representation; personality subtheory)
www.ucc.uconn.edu/~rohner/glossary.html

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También hay una palabra en alemán para esto: Weltanschauung, tan común que se utiliza mucho en otros idiomas (de hecho, yo no hablo alemán), especialmente en el campo de la filosofía.