Definition: The word "keira knightley" means a British actor who has received critical acclaim for his work in film and theatre. It was coined by the Guardian in 2015 after the actor won an Academy Award for Best Actor for her role in "Phantom Thread". Keira Knightley is a popular actress known for her versatile acting style, both in movies and on stage. Her performance in "The Imitation Game" (2014) was lauded by critics and won her numerous awards.