resonance

REZ-uhn-unss /ˈrez.ən.əns/
nounC1GRESATTOEFL
academicscientific

The quality in a sound of being deep, full, and reverberating; the reinforcement of sound by reflection or sympathetic vibration.

Occurs when an external force drives a system at its natural frequency, drastically amplifying vibrational power.

The story behind the word. Derived from Latin 'resonantia' (echo), from 'resonare' (to sound again), formed from 're-' (again) and 'sonare' (to sound). It described sound bouncing back until physics used it for mechanical energy reinforcement.

Word relationships

  • reverberation: 'Reverberation' refers to persistent wall echoes, while 'resonance' is physical frequency amplification within a structure.
  • fullness: 'Fullness' describes subjective richness, whereas 'resonance' has a strict physical definition of frequency matching.
  • dampening: 'Dampening' actively suppresses vibration energy, preventing resonance.

Commonly confused with

  • reverberation: Reverberation is sound bouncing around a room; resonance is a object physically vibrating strongly in response to matching sound waves.

Word family

  • resonant (adjective): Deep, clear, and continuing to sound.
  • resonate (verb): To produce or exhibit resonance.

Collocations

  • deep resonance
  • acoustic resonance
  • sympathetic resonance
  • resonant frequency

Idioms & expressions

  • find resonance with

Example sentences

  • "The rich resonance of the cello body amplifies the delicate vibration of its steel strings." Instrument Design
  • "Engineers installed dampeners on the suspension bridge to prevent mechanical resonance caused by strong winds." Structural Engineering

Memory hook

RE-SONANCE means sound RE-SOUNDING through physical objects. RESONANCE matches frequency to amplify sound.

When not to use

Do not confuse with plain echo; resonance requires sympathetic physical energy transfer, not just reflection.

Fun facts

  • In 1940, wind gusts matched the resonant frequency of the Tacoma Narrows Bridge, causing the solid steel structure to twist wildly and collapse.

Related words

reverberate, ultrasonic

Explore more words

resonate, resistance, Oscillation

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