親指|おやゆびoyayubi[0]heiban (flat)

1. nounthumb
   その手袋てぶくろは親指おやゆびに穴あながあいている。↗

   The glove has a hole in the thumb.
2. nounbig toe

• Synonym拇指ぼしWrittenA medical term for the thumb, found in written or clinical prose; in everyday speech 「親指」 is the usual word.
• Antonym小指こゆびNeutralThe smallest finger or toe, sitting opposite 「親指」 in both position and size.

Say 「親指」 for the thumb or big toe in everyday speech; 「拇指」 is the medical, written term, and 「小指」 names the smallest finger or toe, the opposite of 「親指」.

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

1. 人間にんげんの手足てあしの指ゆびのうち、5本ぽんの端はしにあり最もっとも太ふとい指ゆび。