祖|そso[1]atamadaka (head-high)

1. nounancestor; forefather; progenitor
2. nounoriginator; pioneer; inventor; founder
3. noungrandfatherorig. meaning

• Synonym先祖せんぞNeutralThe everyday word for one's ancestors, as in 「先祖代々」. 「祖」 on its own is written style and usually means a founder or appears in compounds.
• Synonym祖先そせんNeutralMeans ancestors, with a slightly formal tone; it can also refer to the common ancestors of organisms.
• Synonym始祖しそWrittenWritten style. The founder or originator of a school of thought, sect, or family line, stressing the very first person to start it.
• Synonym先人せんじんNeutralPeople of the past in general — predecessors or pioneers whose wisdom, experience, or deeds one may speak of; it does not stress founding something.
• Related元祖がんそNeutralThe originator or first of its kind; often seen on shop signs and in ads as 「元祖」. At home in both speech and writing.
• Related先つ祖さきつおやWrittenAn archaic word for distant ancestors or forebears; rare in modern daily use, found mostly in mythology.
• Related高祖こうそWrittenWritten style for the founding emperor of a dynasty or the founding master of a sect, as in 「弘法大師高祖」.
• Related御祖みおやWrittenAn archaic word for an ancestor, especially one's mother or grandmother; seldom heard in modern everyday speech.
• Antonym孫まごNeutralThe everyday word for grandchild, the generation opposite to 「祖」 in a family line.
• Antonym子孫しそんNeutralDescendants — the opposite of one's ancestors; a somewhat formal word for one's offspring and later generations.

「祖」 alone is written style for a founder or ancestor, as in 「近代医学の祖」. For ancestors in everyday speech pick 「先祖」 or 「祖先」; for originators, 「元祖」 or 「始祖」. The opposite of 「祖」 is 「子孫」.

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

1. (ソ) 血統けっとうや一家いっか系けいの最初さいしょの人ひと。
2. (ソ) 一ひとつの教おしえ、流派りゅうは、物事ものごとなどを始はじめた人ひと。元祖がんそ。