How to say "rider" in Japanese

• ライダーCommon
  nounThe loanword for a person who rides: it covers motorcycle riders and bikers, and can also refer to a horse rider. Use it for the general sense of someone riding a motorcycle or horse.
• 騎手きしゅCommon
  nounA horseman or rider in the equestrian sense; it is also the word for a jockey in horse racing. Use it when the rider is on horseback, especially in a racing context.
  崖がけから落おちた騎手きしゅも馬うまもまもなく救助きゅうじょされた。↗

  The man and his horse that fell off the cliff were soon rescued.
• 特約とくやくCommon
  noun, suru verb, transitive verbThis is the insurance and legal sense of 'rider': a special contract or agreement, such as a clause added to an insurance policy. It never refers to a person riding anything.

Use 「ライダー」 for a person riding a motorcycle or horse, 騎手 for a horseman or jockey on horseback, and 特約 only for the insurance sense of 'rider', meaning an added clause to a contract.

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

• ライダーrider (of a motorcycle, horse, etc.)
• 騎手きしゅhorseman
• 特約とくやくspecial contract
• 乗り手のりてpassenger