(UK) If something is as plain as a pikestaff, it is very clear.
staff of life
staff of life A staple or necessary food, especially bread. For example, Rice is the staff of life for a majority of the earth's people. This expression, which uses staff in the sense of “a support,” was first recorded in 1638.
An staff idiom 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 staff, 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, Thành ngữ, tục ngữ staff