Pinnacle is a synonym for an orgasm or reaching the peak of pleasure. The term was widely used in the regency era in place of orgasm, but the latter word entered circulation in the late 17th century.

In Bridgerton season 4, Francesca uses the word pinnacle to describe a moment of sexual pleasure, giving a new meaning to the word that we wouldn't have ever thought of.

Bridgerton season 4 part one has introduced a new term that has viewers intrigued - here's what 'pinnacle' means and its importance to Francesca's storyline ...

Bridgerton season 4 has introduced the phrase 'pinnacle' as Francesca tries to conceive with husband John Stirling ...

Bridgerton fans are curious about the term, which hasn’t been used in the show before.