Christianity

UK: /ˌkrɪstiˈænɪti/ US: /ˌkrɪstʃiˈænɪti/ ,(kris′chē an′i tē)

Inflections of 'Christianity' (n): npl: Christianities

WordReference Random House Learner's Dictionary of American English © 2025

Chris•ti•an•i•ty /ˌkrɪstʃiˈænɪti/   n. [uncountable]

1. Religion the Christian religion, including the Catholic, Protestant, Eastern, and Orthodox churches.
2. Religion Christian beliefs or practices.
3. Religion Christendom.

WordReference Random House Unabridged Dictionary of American English © 2025

Chris•ti•an•i•ty  (kris′chē an′i tē), n., pl. -ties. 

1. Religion the Christian religion, including the Catholic, Protestant, and Eastern Orthodox churches.
2. Religion Christian beliefs or practices;
   Christian quality or character:
   Christianity mixed with pagan elements; the Christianity of Augustine's thought.
3. Religion a particular Christian religious system:
   She followed fundamentalist Christianity.
4. Religion the state of being a Christian.
5. Religion Christendom.
6. Religion conformity to the Christian religion or to its beliefs or practices.

• Latin, as above
• Middle French
• Latin chrīstiānitāt- (stem of chrīstiānitās), equivalent. to chrīstiān- Christian + -itāt- -ity; replacing Middle English cristiente
• Middle English cristianite 1250–1300

Collins Concise English Dictionary © HarperCollins Publishers::

Christianity / ˌkrɪstɪˈænɪtɪ/ noun

1. the Christian religion
2. Christian beliefs, practices, or attitudes
3. a less common word for Christendom1