How to say "utilize" in Japanese

• 用いるもちいるJLPT N3approx.Common
  ichidan verb, transitive verbCovers 'utilize' in the sense of to use or make use of something, often in formal or written contexts. This is the common word you should reach for when 'utilize' feels right.
  この語ごは今いまでは用もちいられない。↗

  That word has fallen out of use.
• 用うるもちうる
  godan verbA less common variant of 用いる with the same sense of using or utilizing something. Learners will seldom need this form themselves, though they may encounter it in writing.

For 'utilize' in the sense of making practical use of something, 「用いる」 is the common, reliable choice; 「用うる」 is a less common variant of the same verb that learners will rarely need.

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

• 用いるもちいるto use
• 用うるもちうるto use