A "mistress" can refer to a woman who is having a romantic or sexual relationship with a married person, even though that person is already married to someone else. Full definition
- Sandra Gulland, bestselling author of Mistress of the Sun (bookbrowse.com)
The New York Daily News reports that at the Q&A after a screening of Mistress America at the Eccles Theater, Greta Gerwig had some words to say about why women are so important in the creative process. (themarysue.com)
They followed that with Mistress America in 2015, which has a similar vibe: Gerwig plays Brooke, who has a million creative ideas and a very low strike rate. (theguardian.com)