出自|しゅつじshutsuji[0]heiban (flat)

1. nounorigin; birthplace
2. noundescent; lineage; ancestry; stock

• Synonym素性すじょうWrittenWritten. Refers to a person's background and origins, often 「素性が知れない」; stresses identity and antecedents, while 出自 leans toward academic origins and descent.
• Synonym生まれうまれNeutralNeutral and the most everyday choice: birth or birthplace, as in 「東京生まれ」. Lacks the academic flavor of 出自.
• Synonym身元みもとWrittenWritten. Concerns a person's identity and background, as in 「身元不明」 or 「身元保証人」; it leans toward establishing who someone is, not academic origins.
• Synonym家筋いえすじWrittenWritten. A family's hereditary bloodline, close to 「家系」 but used far less often.
• Synonym血筋ちすじNeutralNeutral. Bloodline or descent, as 「血筋は争えない」; stresses inherited blood ties rather than origins in general.
• Synonym血統けっとうWrittenWritten. Blood inherited from one's ancestors, for people and animals alike, as 「血統書」; narrower than 出自.
• Related毛並みけなみNeutralColloquial. Literally the coat or lie of an animal's hair; figuratively good breeding or background, as 「毛並みがいい」 — a metaphorical use, unlike 出自.
• Related系統けいとうNeutralNeutral. Means system or lineage, leaning toward classification and lines of descent, as 「系統立てる」; applies to things as well as people.
• Related家系かけいWrittenWritten. A family bloodline, as 「医者の家系」; stresses descent passed down through generations, narrower than 出自.
• Related系譜けいふWrittenWritten. A genealogy or family tree, also used figuratively for lines of succession, as 「文学の系譜」 — a use 出自 does not have.
• Related家柄いえがらNeutralNeutral. Refers to a family's social standing, as 「家柄がいい」; it judges the rank of the household, where 出自 states origins neutrally.
• Related氏素性うじすじょうWrittenWritten and rather old-fashioned: family standing and lineage, stressing social rank of one's birth — a nuance 出自 does not carry.
• Related門地もんちWrittenWritten. Family standing or birth, now chiefly a constitutional term, as 「門地による差別」; rare elsewhere.
• Related門閥もんばつWrittenWritten. Powerful old families or pedigree; mostly found in historical contexts, as in 「門閥政治」.
• Related血脈けつみゃくWrittenWritten. Blood relationship or lineage, and also blood vessels; in the Buddhist sense of transmission it is read 「けちみゃく」.

Use 「生まれ」 for where someone was born. 「出自」 is the written, academic word for a person's origins, ethnic source, or the provenance of things, as 「出自を明かす」. For identity and background say 「素性」 or 「身元」; for family standing say 「家柄」. The bloodline terms (「血筋」, 「血統」, 「家系」) stick to descent.

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

1. 出所しゅっしょ。生うまれ。