How to say "lime" in Japanese

• ライムCommon
  nounThe citrus fruit (Citrus aurantifolia): the small green fruit added to drinks and dishes. A loanword, it covers only this food sense and is never the mineral substance.
  レモンやライムはすっぱい果物くだものである。↗

  Lemons and limes are acidic fruits.
• 石灰せっかいCommon
  no-adjectiveThe mineral sense: a calcium-based substance, as in quicklime and caustic lime, used in building materials, chemistry, and soil treatment. It never means the fruit; for that, use ライム.

Use 「ライム」 for the citrus fruit, and 石灰 for the mineral substance — quicklime and related calcium materials — used in building, chemistry, and soil treatment; the senses never overlap.

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

• ライムlime (Citrus aurantifolia)
• 石灰せっかいlime