- 総株主(All Shareholders)
- 総合デジタル通信端末 (Terminal for Integrated Services Digital Network)
- 総合デジタル通信用設備 (Facilities for Integrated Services Digital Network)
- 相互承認協定(Mutual Recognition Agreement)
- 走査 (Scanning)
- 捜索救助用レーダートランスポンダ (SART：Search and Rescue Radar Transponder)
- 総社員(All Employees)
- 送信委託者(Sending Trustor)
- 送信空中線系 (Transmitting Antenna System)
- 送信者(Sender)
- 送信者情報(Sender Information)
- 送信所 (Transmitting Station)
- 送信設備 (Transmitting Facility)
- 送信装置 (Transmitting Equipment)
- 送信防止措置(Measures to Block Transmission)
- 相対的欠格事由 (Relative Disqualification)
- 相対的取消事由 (Relative Cause of Cancellation)
- 遭難自動通報局 (Distress Automatic Report Station)
- 遭難信号（Distress Signal)
- 遭難通信（Distress Communication）
- 遭難通信責任者 (Distress Traffic Operator in Charge)
- 双方向無線電話 (Bidirectional Radiotelephony)
- 総務省令で定める箇所における技術的条件(Technical Conditions Required at the Points Specified by an Ordinance of the Ministry of Internal Affairs and Communications)
- 総務省令で定める技術基準(Technical Standards Specified by an Ordinance of the Ministry of Internal Affairs and Communications)
- 総務省令で定める機能ごとの接続料(Interconnection Charges for Respective Functions Specified by an Ordinance of the Ministry of Internal Affairs and Communications)
- 総務省令で定める重大な事故(Serious Accident Specified by an Ordinance of the Ministry of Internal Affairs and Communications)
- 総務大臣の登録（Registration of Minister of Internal Affairs and Communications）
- 総務大臣の認定（Approval of Minister of Internal Affairs and Communications）
- 総務大臣の変更登録（Registration of Amendments of the Minister of Internal Affairs and Communications）
- 側波帯 (Side Band)
- 損害賠償請求権(Right to Claim Damages or Losses)
- 損害賠償責任の制限(Limitation of Liability for Damages)
- 損失補償(Compensation for Loss)
