How to say "font" in Japanese

• フォント
  nounA straightforward loanword for the computing and typesetting sense of 'font', e.g. changing fonts in a document. Given as less common, it is natural but not always the first word learners encounter.
  フォント・ビジネスでは決けっして誰だれも信用しんようしてはいけないよ。↗

  In the font business you must never trust anybody!
• 字体じたいJLPT N1approx.Common
  nounA common word for typeface or letterform — the shape and style of written characters — and it can also mean font. Use it when discussing how characters look rather than software font settings.

For the digital/typographic sense of 'font', 「フォント」 is the direct loanword; 字体 covers typefaces and letter shapes more broadly, and is the common everyday word.

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

• フォントfont
• 字体じたいtype
• 油壺あぶらつぼfont (in an oil lamp)