The rain interfered with our plans to go on a picnic.
An example of interfere is to throw rocks in the middle of someone's running path.
An example of interfere is to jump in when other people are having a disagreement.
Correlated waves interfere to produce interesting patterns, while uncorrelated waves overlap without interfering.
Where the radio-wave signals of the two radio stations interfere the listener hears nothing but noise.
- to hinder
Idioms and Phrasal Verbs
Origin of interfere
- Middle English enterferen from Old French s'entreferer to strike one another entre- between (from Latin inter- inter–) ferir to strike (from Latin ferīre)
From American Heritage Dictionary of the English Language, 5th Edition
- Old French entreferir, from entre- + ferir (“to hit, to strike”), itself from the Latin verb ferio.