C-word
noun /ˈsiː wɜːd/
  /ˈsiː wɜːrd/
(informal, sometimes offensive)- used to replace a word beginning with C that you do not want to say, for example the offensive swear word ‘cunt’, or ‘cancer’
- An employee who uses the C-word to a colleague will be suspended.
 - I hate it when people refer to cancer as the C-word.
 - For these men commitment is the dreaded C-word.