While there are diverse interpretations of Christianity which sometimes conflict, they are united in believing that Jesus has a unique significance. The term "Christian" is also used as an adjective to describe anything associated with Christianity, or in a proverbial sense "all that is noble, and good, and Christ-like."
According to a 2011 Pew Research Center survey, there were 2.2 billion Christians around the world in 2010, up from about 600 million in 1910. By 2050, the Christian population is expected to exceed 3 billion. According to a 2012 Pew Research Center survey Christianity will remain the world's largest religion in 2050, if current trends continue.
Today, about 37% of all Christians live in the Americas, about 26% live in Europe, 24% live in sub-Saharan Africa, about 13% live in Asia and the Pacific, and 1% live in the Middle East and North Africa. About half of all Christians worldwide are Catholic, while more than a third are Protestant (37%).Orthodox communions comprise 12% of the world's Christians. Other Christian groups make up the remainder. Christians make up the majority of the population in 158 countries and territories. 280 million Christians live as a minority.
The Greek word Χριστιανός (Christianos), meaning "follower of Christ", comes from Χριστός (Christos), meaning "anointed one", with an adjectival ending borrowed from Latin to denote adhering to, or even belonging to, as in slave ownership. In the GreekSeptuagint, christos was used to translate the Hebrew מָשִׁיחַ (Mašíaḥ, messiah), meaning "[one who is] anointed." In other European languages, equivalent words to Christian are likewise derived from the Greek, such as Chrétien in French and Cristiano in Spanish.