keep silent about a secret
秘密について沈黙を守る (Himitsu ni tsuite chinmoku wo mamoru)
"Mum’s the word about the new project."
"新しいプロジェクトについて沈黙を守る。" (Atarashii purojekuto ni tsuite chinmoku wo mamoru)
a general practical principle based on experience
a conflict between two determined people
a summary or concise statement of an argument or case
To support or defend someone.
to control something or someone secretly
to start traveling or begin an adventure