moonshot

UK: /ˈmuːnʃɒt/ US: /ˈmunˌʃɑt/ ,(mo̅o̅n′shot′)

WordReference Random House Learner's Dictionary of American English © 2025

moon•shot or moon shot /ˈmunˌʃɑt/   n. [countable]

1. Aerospace the launching of a rocket or spacecraft to the moon.

WordReference Random House Unabridged Dictionary of American English © 2025

moon•shot  (mo̅o̅n′shot′), n. 

1. Aerospace the act or procedure of launching a rocket or spacecraft to the moon.

Also, moon′ shot′. 

• moon + shot¹ 1955–60, American.

Collins Concise English Dictionary © HarperCollins Publishers::

moonshot / ˈmuːnˌʃɒt/ noun

1. the launching of a spacecraft, rocket, etc, to the moon
2. an exceptionally ambitious attempt to meet a goal