| Subject | English | Japanese |
| railw., sec.sys. | all relay interlocking | 継電連動装置 (けいでんれんとうそうち) |
| comp. | n cell relay service | セル・リレー・サービス |
| comp. | n cell relay service | セルリレーサービス |
| railw., sec.sys. | computer controlled relay interlocking | 電算制御継電連動装置 |
| el., sec.sys. | correct operation of relay system | 保護の正動作 |
| sat.comm. | data relay satellite | データ中継衛星 |
| el., sec.sys. | dependability of relay system | 保護の正動作信頼性 |
| comp. | n frame relay service | フレーム・リレー・サービス |
| comp. | n frame relay service | フレームリレーサービス |
| gen. | horseback transportation and communication relay system used in ancient Japan | 伝 (つたわり) |
| el., sec.sys. | incorrect operation of relay system | 保護の誤動作および誤不動作 |
| comp. | n Internet relay chat | インターネット・リレー・チャット |
| comp., MS | Internet Relay Chat | インターネット リレー チャット (A service that enables an Internet user to participate in a conversation online in real time with other users) |
| comp. | n Internet relay chat | インターネットリレーチャット |
| PSP | interval relay with control signal | シグナルインターバルタイマ |
| abbr. | n large sketchbook used during TV filming to notify the cast of special stage direction, relay messages, etc. | カンペ |
| gen. | large sketchbook used during TV filming to notify the cast of special stage direction, relay messages, etc. | カンニングペーパー |
| gen. | long distance relay race | 駅伝大会 |
| abbr. | n long-distance relay race | 駅伝 news1 nf10 |
| gen. | n long-distance relay race | 駅伝競走 |
| comp., MS | media relay server | メディア リレー サーバー (A server, in the perimeter network, that has two separate network interfaces or edges (one for accepting connections from internal clients and another for accepting connections from external clients) and that is used to enable applications to pass audio and video data across NATs and firewalls) |
| PSP | off-delay relay with control signal | シグナルオフディレータイマ |
| PSP | on- and off-delay relay with control signal | シグナルオンオフディレータイマ |
| gen. | n prize for a single stage of a relay race | 区間賞 |
| PSP | pulse delayed relay with control signal | シグナルパルス出力タイマ |
| radio | line-of-sight radio-relay link | 見通し内無線中継リンク |
| radio | radio-relay link | 無線中継リンク |
| radio | line-of-sight radio-relay link | 見通し内無線中継方式 |
| radio | line-of-sight radio-relay link | マイクロ波リンク |
| radio | radio-relay link | 無線中継方式 (musen-chūkei-hōshiki) |
| radio | radio-relay system | 無線中継リンク |
| radio | line-of-sight radio-relay system | 見通し内無線中継リンク |
| radio | line-of-sight radio-relay system | マイクロ波リンク |
| radio | line-of-sight radio-relay system | 見通し内無線中継方式 |
| radio | radio-relay system | 無線中継方式 (musen-chūkei-hōshiki) |
| phys. | relay amplifier | 継電器増幅器 (けいでんき・ぞうふくき) |
| abbr. | n vs relay broadcasting | 中継 ichi1 news1 nf05 (chūkei) |
| gen. | n vs relay broadcasting | 中継放送 |
| PSP | relay defect | リレー欠陥 |
| PSP | relay endurance test | リレーの耐久性試験 |
| PSP | relay failure for elementary relays | リレー故障 エレメンタリーリレーの |
| PSP | relay failure rate | リレーの故障率 |
| PSP | relay failure rate | λ |
| PSP | intermittent relay fault for elementary relays | リレー事故 エレメンタリーリレーの |
| comp., MS | relay host | リレー ホスト (A designated server through which Exchange routes all outgoing messages. The smart host then makes the remote connection. If a smart host is designated, the Exchange server only needs to transmit to the smart host, instead of repeatedly contacting the domain until a connection is made) |
| tech. | relay interlocking | 継電連動装置 (けいでんれんとうそうち) |
| gen. | n relay key | 継電鍵 |
| gen. | n relay network | 中継網 |
| el., meas.inst. | relay output | 継電器出力 |
| gen. | relay point | 中継点 |
| gen. | relay point | 中間点 (ちゅうかんてん) |
| comp., MS | relay port | リレー ポート (A type of class port that defines the internal and external ports of an actor class. Can appear only on the border of an actor class. Relay ports relay incoming messages to a contained actor or outgoing messages from a contained actor) |
| tech. | relay pump | 中継ポンプ (ちゅうけいポンプ) |
| tech. | relay pump | 継送ポンプ (けいそうポンプ) |
| tech. | relay pumping stat ion | 中継場 (ちゅうけいポンプじょう) |
| gen. | relay pumping station | 中継ポンプ場 |
| gen. | n relay race | リレー・レース |
| gen. | n relay race | 継走 |
| gen. | n relay race | リレーレース |
| PSP | relay reliability | リレーの信頼性 |
| comp., MS | relay server | 中継サーバー (A server that manages the exchange of messages or information among different users) |
| phys. | relay servomechanism | リレー・サーボ機構 (rirē-sābo-kikō) |
| telecom. | relay set obsolescent term; in switching | インターフェース回路 |
| railw., sec.sys. | relay set | リレーセット |
| gen. | n relay station | 中継所 (chūkeisho) |
| gen. | n relay station | 宿駅 news1 nf16 |
| radio | relay station in a radio-relay system | 無線中継局 無線中継方式における (musen-chūkeikyoku) |
| radio | relay station | 中継放送送信機 |
| radio | relay station | 中継放送機 |
| radio | relay station | 中継放送局 |
| gen. | n relay station | 中継局 news2 nf45 (chūkeikyoku) |
| gen. | n relay station | 宿 |
| gen. | n relay station | 宿場 news2 nf39 (esp. on Edo-period highway) |
| telecom. | relay switch | リレースイッチ |
| el., sec.sys. | relay system | 保護継電装置 |
| PSP | relay technology categories | リレー機能的分類 |
| PSP | relay technology categories | ＲＴ 略語 |
| el., sec.sys. | reliability of relay system | 保護の信頼性 |
| PSP | retriggerable interval relay with control signal off | 再スタート機能付シグナルオフインターバルタイマ |
| PSP | retriggerable interval relay with control signal on | 再スタート機能付シグナルオンインターバルタイマ |
| el., sec.sys. | security of relay system | 保護の正不動作信頼性 |
| el.gen. | substation relay building | 変電所中継棟 |
| el.gen. | substation relay kiosk | 変電所中継棟 |
| el.gen. | substation relay room | 配電盤室 (haidenbanshitsu) |
| gen. | tracking and data relay satellite | データ中継衛星 |
| radio | trans-horizon radio-relay system | 見通し外無線中継方式 |
| gen. | n TV relay station | テレビ中継所 |