(Heiban – [0]) IPA(key): [it͡ɕiĩɴ] 一(いち)因(いん) • (ichiin) one cause / reason (of many) <span class="searchmatch">一因</span> • (irin) (hangeul 일인) hanja form? of 일인 (“one of the causes”)...
word from <span class="searchmatch">一因</span>, from 一 (“one; first”) + 因 (“cause, reason”). (SK Standard/Seoul) IPA(key): [iɾin] Phonetic hangul: [이린] 일인 • (irin) (hanja <span class="searchmatch">一因</span>) one cause;...
ちなみに、なぜ日本で「TS」が一般的になったかというと、私が「yaysの性転換の館」開始時に、性同一障害に関するサイトから「TS」という用語を拝借してきて盛んに使っていたのも<span class="searchmatch">一因</span>かもしれません。 By the way, as for why 'TS' became popular in Japan, it might be because...