IPA: /ˌæn.tɪˈstrəʊ.fi/
KK: /ænti'strofi/
A section of a choral ode in ancient Greek drama that is sung while the chorus moves in the opposite direction from the strophe, or a similar part in poetry that follows a specific stanza form.
In the performance, the chorus beautifully executed the antistrophe, enhancing the emotional impact of the scene.
Antistrophe is formed from "anti-" (meaning against) and "strophe" (from Greek "strophē", meaning a turn or a verse). The term originally referred to a part of a Greek choral ode that is sung in response to a previous strophe, thus creating a turn or counterpoint in the performance.
Think of 'anti-' meaning against and 'strophe' meaning a turn — this helps you remember that 'antistrophe' refers to a response or turn in a choral performance.