react
UK: riˈækt | US: riˈækt
vi. to act in response to something
vi. (chemistry) to undergo a chemical change
vi. to oppose or resist a force or influence
The word "react" originates from Latin "re-" (meaning "again" or "back") and "agere" (meaning "to do" or "to act"). Combined, "react" literally means "to act again" or "to act in response." Over time, it evolved to describe responses in both physical (e.g., chemical reactions) and behavioral contexts (e.g., emotional or oppositional reactions). The logic reflects cause-and-effect dynamics, where an action triggers a counteraction.
She didn't react when he called her name.
The chemicals react violently when mixed.
How will the market react to the new policy?
He reacted strongly to the criticism.
The metal reacts with oxygen to form rust.