How to say "digit" in Japanese

• 指ゆびJLPT N4approx.Common
  nounCovers the anatomical sense of 'digit': a finger or toe. In ordinary use this word simply means 'finger' (or 'toe'), so treat it as the body-part term, not a mathematical one.
  ドアに指ゆびをはさみました。↗

  I caught my finger in the door.
• 数字すうじJLPT N3approx.Common
  nounThis is the word for a digit as a numeral or numeric character — one of the written symbols 0 to 9 — and it also serves for numbers and figures generally.
  小切手こぎっての金額きんがくは数字すうじと文字もじの両方りょうほうで書かいて下ください。↗

  Write the amount on the check in letters as well as figures.
• 桁けたJLPT N2approx.Common
  nounRefers to a digit as a place in a number rather than the symbol itself: use it when counting how many digits a number has or speaking of its order of magnitude.
  医者いしゃなら６桁けたの収入しゅうにゅうは珍めずらしくない。↗

  A six-figure income is not uncommon for physicians.

Use 指 for the anatomical digit (a finger or toe), 数字 for a digit as a numeral or written figure, and 桁 for a digit as a place in a number or its order of magnitude.

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

• 指ゆびfinger
• 数字すうじnumeral
• ディジットdigit
• 位取りくらいどりgrade
• 桁けたdigit
• 位くらいposition of a figure (e.g. tens, thousands)