初年: The first year that something is begun; the early years of a period. / 所念: What one thinks, one's thoughts. / 初念: One's first thought or decision. / 諸念: Various thoughts.

他所, 他処: another place; moving to another place / 他書: another book

初回: first time

(written) report, paper

presenter, reporter

necessity (quality or state of being necessary, unavoidable, or absolutely requisite)

unnecessary

needlessness

necessary evil

頂点: summit, vertex, apex