cost dear

• cost dearly

cost (someone) dear

1. (transitive with to) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.

• “cost sb dear” in the Cambridge English Dictionary, Cambridge: Cambridge University Press.
• “cost dear” in Merriam–Webster Online Dictionary.
• “cost somebody dear dearly” in Longman Dictionary of Contemporary English, Longman.
• “cost somebody dear” in Longman Dictionary of Contemporary English, Longman.
• “to cost someone dear” in the Collins English Dictionary
• “cost someone dear” in Lexico, Dictionary.com; Oxford University Press.