What does resonance mean?
Resonance describes the amplified vibration or sound that occurs when a system is driven at one of its natural frequencies, as happens with a musical instrument, a bridge, or an electronic circuit. The word also has an important figurative use: a story, speech, image, or piece of music may be said to have resonance when it evokes a strong emotional response or strikes a chord with a particular audience. In historical and political discussion, resonance can mean lasting significance or relevance, suggesting that an event continues to shape present attitudes. These meanings share an underlying idea of response: physical systems resonate when an external force meets a matching frequency, while ideas resonate when they connect powerfully with people's experience. The word is consequently useful in both technical and literary contexts.
The amplified vibration or sound produced when a system is subjected to a periodic force at or near one of its natural frequencies.
"The string changes pitch when the musician adjusts its tension to alter its resonance."
This is the standard technical sense in physics, engineering, acoustics, and music.
The capacity of an idea, expression, experience, or event to evoke a strong and lasting emotional or intellectual response.
"The theme of displacement continues to resonate with audiences around the world."
This figurative sense is common in cultural, political, and personal discussion.
Lasting significance, relevance, or shared meaning within a community or historical context.
"The speech gained new resonance when the issues it raised returned to public debate."
This meaning emphasizes continued relevance or the ability to affect later thought and feeling.
The plural is used for multiple physical resonance phenomena or for multiple instances of figurative significance or emotional effect.
"The chamber's different resonances give the instrument a distinctive tone."
A resonant object does not merely vibrate: it amplifies the right frequency, turning a small push into a powerful response.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does resonance come from?
Resonance comes through Latin from resonare, formed from re- meaning “again” and sonare meaning “to sound.” The Latin noun resonantia referred to the echo or reverberation of sound. English later extended the term metaphorically to the power of ideas, sounds, or events to provoke a strong response, while related forms such as resonate and resonant developed from the same verbal root.
Related word forms
How resonance is actually used
In scientific and technical contexts, resonance is generally neutral and refers to a specific physical or mechanical phenomenon. In cultural, political, and personal contexts, it often implies that an idea, image, or emotional response strikes a particularly strong chord; this figurative use is especially common in journalism and criticism.