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How to pronounce "45th" in English

45th is pronounced with standard English phonetics. Hear authentic native speakers pronounce it in 144 clips with synchronized subtitles and timestamps below.

th

Accent:
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Hear native speakers say 45th in context across real video clips

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Syllablesth
Hear it in contextUS
3:12
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Linguistic Pronunciation Masterclass: “45th”

Phonetic mechanics, syllable architecture, and conversational cadence

Syllable Architecture & Stress Distribution

Syllable 1Unstressed

th

Reduced vowel sound, relaxed jaw, and minimal vocal effort.

As a single-syllable word, "45th" receives full primary stress when spoken in isolation, though it may take a reduced weak form in connected speech when acting as a function word.

Common Pronunciation Traps & Learner Mistakes

⚠️ Voiceless Dental Fricative ⁄θ⁄

The Trap: Many learners substitute "th" with "s", "z", "t", or "d".

How Native Speakers Say It: Place the flat blade of your tongue lightly between your upper and lower incisors. Blow air gently without vocal chord vibration to produce the unvoiced ⁄θ⁄ sound.

Connected Speech & Natural Conversational Flow

🔗 Consonant-Vowel Linking (Liaison)

When "45th" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "45th is" sounds like "45th-iz").

⏱️ Stress-Timed Rhythm

In natural sentences, avoid over-stressing "45th" unless it conveys the core contrast or focal point of your message.

Authentic Spoken Quotes from Native Video Context

Verified Transcripts
“private in the 45th Massachusetts regiment, who took time before tap”
— Harvard UniversityWatch clip
“my father's 45th birthday party and suddenly they turned on the music out of the corner of my eye I saw a microphone and I just couldn't stop myself I had”
— TEDx TalksWatch clip
“JFK's 45th birthday gala in New York.”
— Smithsonian ChannelWatch clip
“largest the 45th largest plywood plant”
— StanfordWatch clip
“plus 2x to the 45th-- I'm just dividing all of these by x or factoring out an x-- plus all the way to 22x”
— Khan AcademyWatch clip
“to pass the baton from the 45th president to the 46th president we are then expecting after the pence's”
— Native SpeakerWatch clip
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private in the 45th Massachusetts regiment, who took time before tap

Hear it in context: “45th”

144 clips

The English word “45th”. Phonologically, it consists of 1 syllable (th), pronounced as a single stressed monosyllable. SayItVid indexes 144 authentic English video clips demonstrating how native speakers articulate “45th” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from Harvard University, TEDx Talks, Smithsonian Channel.

Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)

  • 🇺🇸 USHarvard University
    Clip #1 · @3:12
    “home. Consider, for example, Royal Barry, a private in the 45th Massachusetts regiment, who took time before tap sounded to write to his fiance Ellaner and to draw for her a picture of his”
  • 🇺🇸 USTEDx Talks
    Clip #2 · @0:19
    “hi I'm Elena and I want to tell you a story when I was a little kid I was at my father's 45th birthday party and suddenly they turned on the music out of the corner of my eye I saw a microphone and I just couldn't stop myself I had the corner of my eye I saw a microphone and I just couldn't stop myself I had”
  • 🇺🇸 USSmithsonian Channel
    Clip #3 · @0:06
    “In 1962, Marilyn agreed to perform at JFK's 45th birthday gala in New York. Marilyn ordered a dress for the event,”
  • 🇺🇸 USStanford
    Clip #4 · @14:36
    “know are you sure your town contains the 45th largest the 45th largest plywood plant yes 100% tell me something about your”
  • 🇺🇸 USMIT OpenCourseWare
    Clip #5 · @6:18
    “Oh, the Space Wing. The 45th Space Wing. OK, Space Wing.”

Pronounce: “45th”

Syllables:
th
Hear it in context
45th

Words that Sound Identical (Homophones)

Unique Sound
Explore 800+ homophone pairs

"45th" has no true homophones in standard English — there are no other words with identical pronunciation. Unlike sound-alike pairs like there / their or peace / piece, "45th" has a completely distinct phonetic identity.

Frequently asked questions about 45th

How can I hear “45th” used in real sentences?

This page has 144 real-world video examples of “45th” with synchronized subtitles. Use Previous / Next (or ← / → keys) to hear each one at the exact moment it is spoken.

What is the most common pronunciation mistake when saying “45th”?

Many learners substitute "th" with "s", "z", "t", or "d". Place the flat blade of your tongue lightly between your upper and lower incisors. Blow air gently without vocal chord vibration to produce the unvoiced ⁄θ⁄ sound.