noun
first contact
Loanword from English; used in contexts such as science fiction (first contact with aliens), anthropology (first contact with isolated peoples), or business (initial outreach).
SF映画では、異星人とのファーストコンタクトがよく描かれる。
In sci-fi movies, first contact with aliens is often depicted.
未接触部族
First contact with an uncontacted tribe must be carried out carefully.