reaction

Derived from the Latin 'reactio', meaning 'to act again', which combines 're-' (again) and 'agere' (to act).

NOUN (1)
[/riˈækʃən/en-US]
反応 literal / リアクション loanword / 応答 formal / 返事 casual / 反発 specific / 反応状態 untranslatable (No direct equivalent concept in JAPANESE, as it pertains to a specific context.)
Synonyms response general , reply casual , feedback formal
Antonyms inaction , calm

An action, feeling, or change that happens in response to a stimulus, event, or influence. This can include emotional responses, physical processes (like in chemistry or biology), or social and political responses.

plural
reactions
  • Her immediate reaction to the unexpected news was one of shock and disbelief. — This sentence describes an emotional response to an event.
  • The chemical reaction between the two compounds produced a significant amount of heat. — This example refers to a process in chemistry.
  • What was his reaction when you finally told him about the surprise party? — This asks about a person's individual response to information.
  • The public's reaction to the new policy was largely negative, leading to widespread protests. — This illustrates a collective or societal response.