〔観念〕an idea;〔考え〕a thought, an ideology;〔総称〕thought, ideas
近代西欧思想
modern Western thought
新旧思想の衝突
a conflict between [of] new and old ideas
過激[危険]な思想
radical [dangerous] ideas [convictions]
思想を取り締まる
maintain strict thought control/exert strict control [censorship] over ideas
思想を弾圧する
suppress ideas
彼は思想が健全だ
He has sound ideas./His thinking is quite sound.
思想運動a movement involving [based on] ideas [an ideology]
思想家a thinker
思想界the realm of ideas; the world of thought
思想警察(the) thought police
思想劇a play dealing with ideas; a play dealing with social [political; philosophical] issues
思想史the history of ideas [thoughts]
思想調査thought investigation [inquiry]
思想統制thought control; censorship of ideas
思想犯an ideological offense; the crime of espousing dangerous ideas;〔人〕a person guilty of espousing dangerous ideas, an ideological offender;〔政治的な〕a political crime [offense];〔人〕a political offender