French letter 
noun British informal, dated
A condom.The new orthodoxy preached by the ostensibly liberal apostles of political correctness sanctifies the condom, no longer to be referred to disparagingly as the rubber Johnny or the French letter....
- According to the ad, ‘Julius would like to give you some straight talk about French letters.’
- I had taken some trouble to insert among the smoked salmon and cream cheese, a French letter.
- propeptide
- proper
- proper adjective
- Proper Bostonian
- properdin
- proper fraction
- properispome
- properispomenon
- proper law
- properly
- proper motion
- proper name
- properness
- proper noun
- Proper Preface
- Propertian
- propertied
- proper time
- Propertius, Sextus
- property
- property bond
- property box
- property boy
- property developer
- property income certificate