noun
reply telegram; answer to a telegram
Refers specifically to a reply sent by telegram. Now largely historical, as telegrams are rarely used.
外務省は大使館からの問い合わせに答電を送った。
The Ministry of Foreign Affairs sent a reply telegram to the embassy's inquiry.
noun
electronic reply message (from a government, head of state, etc.)
Used in diplomatic or official contexts for a formal electronic reply, often from a government or high-ranking official. The term retains a formal, somewhat dated feel.
首相は各国首脳からの祝電に答電を発した。
The prime minister sent reply messages to the congratulatory telegrams from world leaders.