doc·trine 
/ˈdɑ:ktrən/ noun
plural doc·trines /ˈdɑ:ktrən/ noun 1 : a set of ideas or beliefs that are taught or believed to be true [count] ▪ The government was founded on a doctrine of equality for all people. ▪ Many psychologists now question the doctrines of Sigmund Freud. [noncount] ▪ teaching religious doctrine to young people 2 [count] US : a statement of government policy especially in international relations
▪ the Truman/Monroe doctrine
▪ the Truman/Monroe doctrine
— doc·tri·nal /ˈdɑ:ktrənl̟, Brit dɒkˈtraɪnl̟/ adjective
▪ The group split into two parties as a result of doctrinal differences.
▪ The group split into two parties as a result of doctrinal differences.
— doc·tri·nal·ly adverb
