also: イデオロギ
noun
Refers to a systematic set of beliefs, ideas, or doctrines, often political or social. Used in academic and everyday contexts.
from German Ideologie
彼のイデオロギーは社会主義に近い。
His ideology is close to socialism.
イデオロギーの対立が戦争を引
Ideological conflicts can sometimes lead to war.