部品|ぶひんbuhin[0]heiban (flat)

1. nounparts; accessories; components
   この車くるまの予備よびの部品ぶひんを買かうことができない。↗

   I cannot buy spare parts for this car.

• SynonymパーツNeutralLoanword, used often for car, computer and craft parts; also covers body parts. 「部品」 is the more formal choice, typical of industrial manufacturing.
• Related部分品ぶぶんひんWrittenWritten/formal prose and rare; it means parts and components. In everyday speech, 「部品」 is the word to use.
• Antonym完成品かんせいひんNeutralThe opposite of 「部品」 on the part-versus-whole axis: it refers to the finished product once assembly is complete.

For parts of machines and manufactured products, 「部品」 is the standard, formal term. Car, computer and craft parts are usually 「パーツ」. 「部分品」 is rare written prose. For a fully assembled item, say 「完成品」.

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

1. 機械きかいや製品せいひんを構成こうせいする、より小ちいさい単位たんいのもの。