返詞 is read as へんし (henshi) and means reply.
へんし
henshi
かえりざき
comeback (e.g. in business)
へんそうしょうごう
echo check
へんじをのばす
to delay one's answer
かえしわざ
counterattack
かえしばり
back stitch
かえりち
spurt of blood (from one's victim)
かえりちをあびる
to be spattered by blood from one's victim
ことば
language
めいし
noun
のと
congratulatory address
せりふ
(spoken) line (in a play, film, comic, etc.)
だいめいし
pronoun