How to say "researcher" in Japanese

• 研究者けんきゅうしゃCommon
  nounThe default word for a researcher in the occupational sense: a person whose work is research. Suitable for academics and scientists in most contexts, such as describing someone's profession.
  紫外線しがいせんの急激きゅうげきな上昇じょうしょうは研究者けんきゅうしゃたちにオゾンホールの存在そんざいを信しんじさせた。↗

  The sudden increase of ultraviolet rays made the researchers believe in the existence of ozone holes.
• 研究員けんきゅういんCommon
  nounCovers a researcher as a staff position at an institution, think tank, or laboratory, with the nuance of an appointed employee. Also glossed as lab worker, so it suggests a salaried role rather than the field itself.
• 研究家けんきゅうかCommon
  nounA student (of) a subject: someone who studies a field with enthusiasm, often as an amateur or independent enthusiast rather than a professional. For a professional researcher this is seldom the word you want.

Use 研究者 for a researcher as a profession or occupation, 研究員 for someone employed at an institution or lab, and 研究家 for an enthusiastic student of a subject, often non-professional.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 研究者けんきゅうしゃresearcher
• 研究員けんきゅういんresearcher
• 研究家けんきゅうかresearcher
• リサーチャーresearcher
• 実験者じっけんしゃexperimenter
• 探究者たんきゅうしゃinvestigator
• 研究職けんきゅうしょくresearch work