Refers to the official teachings or fundamental beliefs of a religion, especially Christianity. Used in theological or formal contexts.
I study Christian doctrine.
I studied the doctrine of Christianity.
That sect has its own creed.
The believers strictly follow that doctrine.
The pastor preached the doctrine on Sunday.
That behavior went against the church's doctrine.
教義 is the formal, codified doctrine of a religion, whereas 教え is a general word for any teaching or lesson, religious or not.
教義 refers to an institution's official doctrine, while 信条 can also describe a personal creed or set of beliefs an individual holds.
教義 refers specifically to religious dogma or creed, while ドクトリン is a broader loanword covering political, military, or ideological doctrines as well.
教義 is the everyday word for religious doctrine or tenets, whereas 宗 in this sense is a more specialized, classical-sounding term.
教義 means the formal doctrine or teachings of a faith, while 宗教 is the broader term covering believers, practice, and institution as well.
教義 specifically means religious or sect doctrine, whereas 主義 is a general term for any principle or -ism, religious or not.
dogmatics; dogmatic theology
Compound of 教 (teaching) and 義 (righteousness, meaning). The exact historical derivation is uncertain, but the combination has been used to translate Western religious concepts such as 'doctrine' and 'creed'.