Christian meaning
EN
[ˈkɹɪʃtʃən] [ˈkɹɪstjən] [ˈkɹɪstʃən] 
US WChristian
- A Christian ( pronunciation ) is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth.
- There are diverse interpretations of Christianity which sometimes conflict. However, "Whatever else they might disagree about, Christians are at least united in believing that Jesus has a unique significance.
FR Christian 
- NounPLChristiansSUF-ian
- A believer in Christianity.
- An individual who seeks to live his or her life according to the principles and values taught by Jesus Christ.
- A believer in Christianity.
- AdjectiveCOMmore ChristianSUPmost Christian
- (not comparable) Of, like or relating to Christianity or Christians.
- (not comparable) Of, like or relating to Jesus Christ.
- Kind, charitable; moral; a term of approbation.
- That's very Christian of you.
- (not comparable) Of, like or relating to Christianity or Christians.
- Proper noun
- A male given name found in England since the twelfth century.
- A female given name of medieval usage, rare today.
- A patronymic surname.
- A male given name found in England since the twelfth century.
- More Examples
- Used in the Middle of Sentence
- In certain Christian circles invoking the Bible constitutes irrefutable proof.
- Most believers in Christian atheism believe that God never existed, but there are a few who believe in the death of God literally.
- Only eleven codexes form the division that is intitled CHRISTIAN I.
- Used in the Beginning of Sentence
- Christian charity, or love, stands first in the rank of gifts.
- Used in the Middle of Sentence
Definition of Christian in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Nouns
- Countable nouns
- Proper nouns
- Countable nouns
- Adjectives
- fr Christian
- en Christians
- en Christiana
- fr Christiane
- en Christianly
Source: Wiktionary
Grammatically, this word "Christian" is an adjective. It's also a noun, more specifically, a countable noun and a proper noun.