on a mission
idiom
: undertaking a task that one considers to be a very important duty
She's on a mission to locate her lost sister.
Examples of on a mission in a Sentence
Recent Examples on the Web
Albania has been on a mission to root out corruption for the past decade, embarking on a widespread vetting process of every judge in the country, and creating specialized anti-corruption bodies to prosecute graft, to improve its chance of acceding to the European Union.
—
Tharin Pillay, Time, 10 Oct. 2025
The second season follows Camille and Issei on a mission to uncover a mystery about the world’s greatest wine.
—Giana Levy, Variety, 9 Oct. 2025
First to go into space will be the European Space Agency's PLATO (PLAnetary Transits and Oscillations of stars), currently set to launch in December 2026 on a mission to search for the transits of planets including rocky, Earth-sized worlds in the habitable zone of their star.
—Keith Cooper, Space.com, 8 Oct. 2025
The two make a secret pact, but on the day of their departure on a mission, Lili is struck by disaster.
—Jesse Whittock, Deadline, 8 Oct. 2025
See All Example Sentences for on a mission
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Tharin Pillay, Time, 10 Oct. 2025
The second season follows Camille and Issei on a mission to uncover a mystery about the world’s greatest wine.
—Giana Levy, Variety, 9 Oct. 2025
First to go into space will be the European Space Agency's PLATO (PLAnetary Transits and Oscillations of stars), currently set to launch in December 2026 on a mission to search for the transits of planets including rocky, Earth-sized worlds in the habitable zone of their star.
—Keith Cooper, Space.com, 8 Oct. 2025
The two make a secret pact, but on the day of their departure on a mission, Lili is struck by disaster.
—Jesse Whittock, Deadline, 8 Oct. 2025
See All Example Sentences for on a mission
Cite this Entry
“On a mission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20a%20mission. Accessed 18 Oct. 2025.
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