respond

/rɪˈspɑnd/
verb
  1. To say or write something as a reply to a question or statement.
    • Please respond to the email by Friday.
    • He responded with a simple 'yes'.
    • She didn't respond to my question about the meeting.
  2. To react to something that happens or is done.
    • The company responded to the crisis by issuing a public apology.
    • Plants respond to light by growing toward it.
    • The firefighters responded quickly to the alarm.
  3. To show a positive reaction to medical treatment.
    • Doctors hope the infection will respond to antibiotics.
    • Her tumor did not respond to chemotherapy.
    • The patient is responding well to the new medication.
Antonyms
noun
  1. An answer or reply, especially in a formal or religious context.
    • In the liturgy, the congregation gives a respond after each prayer.
    • His respond to the accusation was brief and firm.
    • The choir sang the respond during the service.