English definition of “first”
/ˈfɜːst/ noun, pronoun
the first › the first person, people, thing, or things: Hillary and Norgay were the first to climb Everest. I enjoyed his second novel more than the first.
be a first › to be something that has never happened before: Man walking on the moon was a first in space history.
› [C] the highest exam result that you can achieve at the end of a university course in the UK