secrets

Idioms (9)

• behind the scenes Neutral · CEFR B2
  happening privately or secretly, not in public view
• have up one's sleeve Informal · CEFR B2
  to have a secret plan or advantage kept ready for later use
• come to light Neutral · CEFR B2
  to become known or be discovered, especially something hidden
• give the game away Informal · CEFR B2
  to accidentally reveal a secret or plan
• spill the beans Informal · CEFR B1
  To reveal a secret, often accidentally.
• let the cat out of the bag Informal · CEFR B1
  To reveal a secret, usually by mistake.
• pull someone's leg Informal · CEFR B1
  To tease or joke with someone by telling them something untrue in fun.
• skeleton in the closet Neutral · CEFR B2
  a shameful secret in someone's past
• come clean Informal · CEFR B2
  to confess the truth about something previously hidden or denied