3 syllables: Sub, ma, rine. Stress on Sub.
SUHB-mur-een
/ˈsʌbmɚˌin/
Submarine is pronounced SUHB-mur-een (/ˈsʌbmɚˌin/). It has three syllables (Sub-ma-rine), with the stress on "Sub". Submarine is a noun referring to a watercraft capable of underwater travel, or a vehicle designed to operate primarily beneath the surface. It can also describe a stealthy, hidden approach or operation. In everyday use, it commonly denotes military submarines or science-fiction vessels. The term combines a prefix implying below with a waterborne vessel, highlighting its undersea function.
nounSubmarine is a noun referring to a watercraft capable of underwater travel, or a vehicle designed to operate primarily beneath the surface. It can also describe a stealthy, hidden approach or operation. In everyday use, it commonly denotes military submarines or science-fiction vessels. The term combines a prefix implying below with a waterborne vessel, highlighting its undersea function.
How to Pronounce Submarine
"The submarine surfaced after a long patrol."
"Researchers tested a small submarine to study deep-sea ecosystems."
"During the exercise, the submarine slipped quietly beneath the waves."
It’s pronounced /ˈsəb.məˌriːn/ in US/UK/AU. Break it into three syllables: sub-uh-MUH-reen, with primary stress on the second syllable and a secondary, lighter emphasis on the final 'reen.' Mouth position: start with a light, short /s/ followed by a reduced vowel /ə/ in the first syllable, then /m/ plus a schwa /ə/ in the second, and finish with /riːn/ where the /iː/ is held slightly longer. See audio examples linked in the video tutorial for natural timing and intonation.
Common errors include over-pronouncing the first syllable: stressing 'sub' as in a strong /ˈsʌb/ rather than a light /səb/. Another is merging the second and final syllables too quickly, turning /məˈriːn/ into /məˈriːn/ with poor separation. Correct by practicing: /ˈsəb.məˌriːn/ with a deliberate /ə/ in the first and a short /mə/ before /riːn/. Use slow repetition, then speed up while maintaining the schwa and final long /iːn/.
US/UK/AU share the same three-syllable rhythm, with primary stress on the second syllable. The big differences are vowel qualities: US often has a slightly flatter /ə/ and clearer /iː/ in the final syllable; UK can feature a crisper /ˌriːn/ and more rounded /ə/ in the middle; AU typically shows a slightly broader, more rounded vowel in the final /riːn/. The rhoticity affects the first syllable’s color only subtly. Overall the IPA remains /ˈsəb.məˌriːn/ across regions, but vowel timbre and length differ.
The difficulty lies in the unstressed reduced vowels in the first two syllables and the long final vowel /iːn/. Speakers often over-articulate the initial /s/ or misplace the primary stress, leading to /ˈsʌb.məˈriːn/ or /ˈsəˌb.məˌriːn/. Also, the sequence /məˌriːn/ can blur in rapid speech. Focus on keeping a light /ə/ in the first syllable, a clear /mə/ in the second, and a crisp long /iːn/ at the end. IPA cues: /ˈsəb.məˌriːn/.
The key nuance is the three-syllable template with a relatively weak first syllable and a stronger, longer final syllable. The primary stress on the second syllable drives rhythm, so you should deliver the middle syllable with the strongest duration and pitch peak, then glide into the long /iːn/. Visualize a gentle crest in your intonation on /məˌriːn/ while keeping the start light and quick.
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Submarine derives from the post-classical Latin submarine, from sub- ‘under’ + mare ‘sea’ (Latin) forming a compound that literally means ‘under the sea.’ The English adoption traces to the early 17th century with naval and scientific contexts expanding in the 19th and 20th centuries as underwater craft emerged. The term has maintained its core semantic core—an object designed to operate below sea level—while broadening to metaphorical uses (e.g., “submarine tactics” or speculative fiction vessels). The modern word solidified in English through military tech discourse and maritime exploration, becoming a standard lexeme in both military and civilian high-technology parlance. First known use in accessible texts appears in the 1620s-1640s in Latinized scientific writing, with English attestations following in naval histories and treatises on underwater navigation. Over time, the word integrated into common vocabulary alongside other “sub-” compound terms to express undersea functionality.
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💡 These words have similar meanings to "Submarine" and can often be used interchangeably.
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Words that rhyme with "Submarine"
-ine sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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