受話器|じゅわきjuwaki[2]nakadaka (mid-high)

1. noun(telephone) receiver
   彼かれは急いそいで受話器じゅわきを置おいた。↗

   He put the phone down in haste.

• SynonymレシーバーNeutralNeutral loanword for receivers in general — radio gear, even a volleyball receiver; 「受話器」 refers only to the telephone handset.
• Antonym送話器そうわきWrittenThe telephone's transmitter — the mouthpiece that turns your voice into a signal — the counterpart of the handset 「受話器」; a written/formal term.

Use 「受話器」 for the telephone handset, as in 「受話器を取る」. For receivers as devices — or a volleyball receiver — say 「レシーバー」; the mouthpiece you speak into is 「送話器」.

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

1. 相手あいてから送おくられた電気でんき信号しんごうを音声おんせいに変換へんかんする装置そうち。レシーバー。