What does ～者 mean?
～者 is a Japanese suffix meaning “-er” or “person who ~ (suffix)” in English. It is written as ～者 in kanji, ～しゃ in hiragana, and ～sha in romaji. This word is part of JLPT N2 vocabulary.
NoteSuffix for a person who does something (研究者 = researcher, 参加者 = participant).
Example sentences
参加者は百人を超えた。
There were over a hundred participants.
彼は有名な研究者だ。
He's a famous researcher.