Plural for strict secretiveness maintained by the members of a police force with respect to information which might be contrary to their interests, especially information concerning questionable police actions
An blue walls synonym dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with blue walls, allowing users to choose the best word for their specific context.
Cùng học tiếng anh với từ điển Từ đồng nghĩa, cách dùng từ tương tự, Từ đồng nghĩa của blue walls