Answer: Tsunami is spelled with a leading "ts" because it comes from Japanese "tsunami," where the initial consonant cluster is a single sound. In English, many speakers drop the silent "t" in practice, but correct spelling preserves the "ts" from the original language.
Latest context and practical note:
- The preferred English usage over time has shifted from "tidal wave" to "tsunami" in common journalism and dictionaries, with "tsunami" gaining dominance since the mid-20th century.[5][7]
- Pronunciation varies: some say "tsunami" with the initial "ts" sound, while others simplify to "sunami" in casual speech, though many major dictionaries indicate the "ts" pronunciation as standard.[2][4]
If you want, I can pull recent sources or pronunciation guides from reputable dictionaries and explain regional differences in usage.
Sources
Despite appearing in the September 1986 issue of National Geographic, it was not until the 1960s that ‘tsunami’ overtook the inaccurate ‘tidal wave’ in English usage.
www.scmp.comAlthough *maremoto* and tsunami * are sometimes used as synonyms, *maremoto* refers to the agitation of seawater due to an underwater earthquake (a *seaquake*) and tsunami * refers to the great waves caused by said phenomenon. Both tsunami * and *sunami* are considered correct spellings by the Royal Spanish Academy, but tsunami * is preferred and far more common. marejada maremoto
en.wiktionary.org4. ### Andrew said, Andrew sMarch 11, 2011 @ 1:28 pm I heard someone on the Today Programme on BBC Radio 4 this morning pronounce tsunami with the initial "ts". So maybe they were trying to pronounce it the Japanese way for a disaster in Japan. … I have always pronounced tsunami with the [ts], and that was before I learned and cared anything about the Japanese language, and I heard it pronounced either way during the South Asian earthquakes. I strongly disagree that pronouncing [ts] shows any...
languagelog.ldc.upenn.eduWhy do English speakers use the Japanese word “Tsunami”, when there is a perfectly usable word “tidal wave”? Not just English speakers, even Germans, Italians, and French use “Tsunami”. Does Tsunami happen most commonly in Japan? Personally, I don’t remember any Tsunami incidents when I was living…
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rctwg.humboldt.eduTable of Contents 1 Why is a tsunami spelled that starts with t? 2 Why is the term T silent in tsunami? 3 Is the T in tsunami? 4 What is the English name for tsunami? 5 How did tsunami get its name? The ‘t’ is silent in the English version of ‘tsunami’ because ‘ts’ is not acceptable at the beginning of a word in English. In Japanese, the ‘ts’ sound is acceptable at the beginning of a word, and so the ‘t’ part *is* pronounced in the original Japanese (they actually think of ‘ts’ as a single...
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