4 syllables: in, ter, fer, ences. Stress on fer.
/ˌɪn.tɚˈfɪr.ən.sɪz/
Say it backInterferences (plural noun) refer to obstacles or hindrances that disrupt or obstruct a process, signal, or communication. In physics, biology, or everyday speech, interferences denote unintended disturbances that obscure or alter the intended outcome. The term often implies competing signals, noise, or disruptive factors that reduce clarity or accuracy in measurement or understanding.
"Radio interferences can make the signal crackle and degrade audio quality."
"In experiments, electrical interferences from nearby equipment may skew results."
"Noise and visual interferences in a crowded room can hamper concentration during presentations."
Break it as in-ter-FER-ən-siz. Primary stress on the third syllable: /ˌɪn.təˈfɪər.ən.sɪz/ (US) or /ˌɪn.təˈfɪə.rən.sɪz/ (UK). Start with a quick schwa in the first two syllables, then a clear 'FER' with long /ɪər/ in many accents, and finish with /ən.sɪz/. Tip: the ending -ences sounds as /ən.siz/ in most varieties. You’ll hear a slight liaison between the syllables in fluent speech: in-tuh-FEER-ən-siz. Audio reference: consult Cambridge or Forvo pronunciations for the plural ending /-ɪz/ or /-əz/ depending on speaker.
Common errors: (1) stressing the wrong syllable (placing emphasis on ‘in’ or ‘ter’); (2) mispronouncing the affricate-like ending by making it /-sɪz/ instead of /-zɪz/ or /-ənz/?; (3) conflating ‘fer’ as in ‘fer’ with a heavy ‘er’ sound. Correction: place stress on the third syllable and use /ˈfɪər/ or /ˈfɪᵊr/ with a clear long vowel, then finish with a voiceless or voiced sibilant cluster /ən.siz/; maintain a light, quick schwa in the first two syllables. Listen to native samples and practice the transition between /ə/ and /ɪəl/ with minimal pairs.
In US English, you typically hear /ˌɪn.tɚˈfɪr.ən.sɪz/, with rhotic /ɚ/ and a pronounced /r/ in the second syllable. UK English tends to use /ˌɪn.təˈfɪə.rən.sɪz/ with non-rhotic /ɜː/ or /ɪə/ and a crisper /t/; Australian often falls between, with /ˌɪn.təˈfɪə.rən.siz/ and less rhoticity, sometimes a more centralized /ə/. Focus on the vowel quality of /ɪ/ in the first syllables, the rhotic versus non-rhotic influence, and the final /ɪz/ vs /ɪz/ realization. Listen to regional corpora for precise variations.
Two main challenges: (1) the multi-syllable rhythm with a stress shift into the third syllable, and (2) the final cluster /ən.sɪz/ can be tricky: the euphony between /ən/ and /sɪz/ requires careful timing and air flow. Muscular coordination for the mid-placed /fɪər/ vowel plus the liquid-like /ən/ before /sɪz/ can feel awkward if you’re not comfortable with the contracted schwa followed by a sibilant. Practice through slow repetition, chunking, and listening to native samples in context to stabilize the rhythm.
A distinctive feature is the sequence of unstressed syllables around the stressed vowel, especially in quick speech where the first two syllables reduce heavily to /ɪn.tə/ or /ɪn.tər/. The second half compresses into /fɪər.ən.siz/ or /fɪər.ən.sɪz/ depending on accent. The plural ending also affects syllable count and timing; maintain a final voiced /z/ or /z/ depending on the preceding sound. This word rewards careful syllable-timed rhythm and clean separation of the stressed /FER/ block.
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Interference derives from the Latin inter- ‘between, among’ + ferire ‘to strike, to harm’ (via ferĕre). The sense evolved through medieval Latin into Old French as interférence, later adopting English forms as interference in the 17th-18th centuries. The plural interferences appeared in the late 18th to 19th centuries with the rise of scientific discourse, particularly in signal theory and physics, where multiple signals can interfere with each other. The term retains its core metaphor of things striking between or among systems, yielding both a literal sense of collision and a figurative sense of disruption. In modern usage, interferences describes both physical phenomena (electromagnetic, acoustic) and metaphorical disruptions (legal, cognitive). First known use in English literature traces to discussions of optical interference patterns, evolving to broader technical usage during the industrial age as technology introduced more complex measurement or communication systems. The word has remained prevalent in science, engineering, and everyday speech to denote unintended disturbance that compromises intended results.
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Words that rhyme with "interferences"
-ces sounds
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