noun
one's principles and position; one's beliefs and stance
A yojijukugo referring to a person's firmly held principles and the stance they take based on them. Often used in political, ideological, or personal conviction contexts.
彼は自分の主義主張を決して曲げない。
He never compromises his principles and position.
選挙では各候補者の主義主張をよく聞くべきだ。
In an election, you should listen carefully to each candidate's beliefs and stance.
主義 alone means 'principle' or 'doctrine', but 主義主張 is a set phrase that bundles principles with the resulting position or assertion.
A yojijukugo combining 主義 (principle, doctrine) and 主張 (assertion, claim). The exact historical derivation is uncertain, but it is a natural compound expressing the concept of one's principles and the stance taken based on them.