--- title: "How to pronounce \"red shift\" in English | SayItVid" description: "Learn how to say \"red shift\" correctly. Watch real-life video examples and master your English pronunciation with SayItVid." image: "https://img.youtube.com/vi/aAi0Fp431Ag/hqdefault.jpg" url: "https://sayitvid.com/pronounce/red-shift" --- # How to pronounce "red shift" in English ## Pronunciation & Phonetics - **IPA (International Phonetic Alphabet)**: `/ˈɹɛdˌʃɪft/` - **Native Audio Recording**: [Listen to Audio Clip](https://upload.wikimedia.org/wikipedia/commons/transcoded/3/31/En-us-redshift.ogg/En-us-redshift.ogg.mp3) - **Syllable Breakdown**: **red·shift** - **Parts of Speech**: noun, verb - **NOUN**: An increase in the wavelength of a photon or of light, corresponding to a lower frequency and a shift toward the red end of the electromagnetic spectrum. - **VERB**: (ergative) (said of light or a photon) To shift toward the red end of the electromagnetic spectrum; to change to a longer wavelength and a lower frequency. ## Real-Life Native Speaker Examples (15 Video Clips) Listen to native speakers pronounce "red shift" in real conversation: ### Example 1 > "Times there are billion solar mass black holes that these weigh a billion times as much as the sun um and this is at a red shift of six red shift tells you how much more dense the universe was at that time and so you have to in very rapid fire do something from forming these first first" - **Jump to Video Timestamp**: [Watch on YouTube at 0:24](https://www.youtube.com/watch?v=aAi0Fp431Ag&t=24s) ### Example 2 > "today is red shift zero so the the light coming from today is not red shifted at all mhm and so the scale factor today is 1 over 1 plus 0 which is one okay so at Red shift one the scale factor is 1 12 because it's 1 over 1+ 1 and so that means the universe was half as big at Red shift one got it and it turns out that that red shift 1 was when the universe was about 6 billion years old" - **Jump to Video Timestamp**: [Watch on YouTube at 9:41](https://www.youtube.com/watch?v=ZEYH_SxKwrU&t=581s) ### Example 3 > "red shift and stop thinking about I thought it might be useful to see a spectrum of a galaxy this is a a spectrum wavelength from the blue to the" - **Jump to Video Timestamp**: [Watch on YouTube at 5:18](https://www.youtube.com/watch?v=SSaj_5NXnQ0&t=318s) ### Example 4 > "red shift how many galaxies do you see as a function of red shift forget the dimness and the brightness for a minute now just how many galaxies do you see at" - **Jump to Video Timestamp**: [Watch on YouTube at 66:32](https://www.youtube.com/watch?v=eOOtl8DTmhQ&t=3992s) ### Example 5 > "red shift Factor this metric just like the Schwarz Shield metric has associated with it a gravitational potential this metric also" - **Jump to Video Timestamp**: [Watch on YouTube at 40:12](https://www.youtube.com/watch?v=jnItLp3NR5I&t=2412s) ### Example 6 > "red shift so we got to look at cultural factors and economic factors all these things are coming into play so you I'm always lary of giving explanations all I" - **Jump to Video Timestamp**: [Watch on YouTube at 29:08](https://www.youtube.com/watch?v=34TSk-JKIbc&t=1748s) ### Example 7 > "A red shift 1 means that we're looking at the universe back when essentially all distances were half of their present value." - **Jump to Video Timestamp**: [Watch on YouTube at 14:08](https://www.youtube.com/watch?v=Guvv5olLxCQ&t=848s) ### Example 8 > "the gift of light yeah it's amazing yeah it's wild we can look at galaxies at different times in the past and and at this point I'm going to have to talk about red shift again because as a cosmologist this is just this is how I think about the timeline and I will get too confused if I try and do it another way so we talked about red shift a few times red shift is a term for how the expansion of the universe is stretching out the light as it's traveling to us" - **Jump to Video Timestamp**: [Watch on YouTube at 7:12](https://www.youtube.com/watch?v=ZEYH_SxKwrU&t=432s) ### Example 9 > "no no no do you do you genuinely say like red shift and then a number yeah yeah exactly yes so I was making a joke but it turns out that you actually do say red shift and then a number to represent what I would think of as billions of years yes yeah and um it's connected to the size of the universe at" - **Jump to Video Timestamp**: [Watch on YouTube at 8:33](https://www.youtube.com/watch?v=ZEYH_SxKwrU&t=513s) ### Example 10 > "modeled based on our model of how the universe has been evolving because we don't know that objectively just by looking at the object we have to look at the red shift the red shift is the thing that we know the best because we can just see that in the Spectrum and that's very precise it can be done very precisely so we know the red shift but the rest of it is is all modeling based on how we think the universe has evolved since the light left that object so we" - **Jump to Video Timestamp**: [Watch on YouTube at 14:04](https://www.youtube.com/watch?v=ZEYH_SxKwrU&t=844s) ## Related Words & Synonyms - **Nearby Vocabulary**: [red](https://sayitvid.com/pronounce/red), [shift](https://sayitvid.com/pronounce/shift) ## Frequently Asked Questions ### How do you pronounce "red shift" correctly? "red shift" is pronounced `/ˈɹɛdˌʃɪft/`. Syllable breakdown: **red·shift**. ### What does "red shift" mean in context? An increase in the wavelength of a photon or of light, corresponding to a lower frequency and a shift toward the red end of the electromagnetic spectrum. ```json { "@context": "https://schema.org", "@graph": [ { "@type": "WebPage", "@id": "https://sayitvid.com/pronounce/red-shift#webpage", "url": "https://sayitvid.com/pronounce/red-shift", "name": "How to pronounce \"red shift\" in English | SayItVid", "description": "Learn how to say \"red shift\" correctly. 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