Diphthongs
Have you ever heard two different vowel sounds in just one syllable? if you have no idea about it, you should start learning it in this lesson. Let's see.
What Are Diphthongs?
The word 'diphthong' comes from Greek and It means 'two sounds'. A diphthong is a vowel formed by two different vowel sounds in just one syllable that produces a unique sound. The sound of a diphthong moves from one vowel to another, which is why they are also called gilding vowels. On the other hand, monophthongs are pure single vowel sounds, so they are different from diphthongs.
The Diphthong Sounds
Down below, you can find the main diphthong sounds shown by the symbols of IPA:
- /aɪ/
- /eɪ/
- /əʊ/
- /ɔɪ/
- /aʊ/
Now let's analyze each of these diphthongs:
aɪ
eɪ
əʊ
It can be seen in words that contain letters such as 'ow' and 'oa'. Here are some examples:
sl
m
ɔɪ
It is usually found in words containing 'oy' or 'oi'. Here are a few examples:
t
f
aʊ
It is seen in words including letters such as 'ou' and 'ow'. Here are some Examples:
h
cr
Tip!
Remember that not all diphthongs contain two vowel letters. Some diphthongs include consonants such as 'igh' and some of them are represented by a single vowel letter such as 'u'. In phonetics, diphthongs are represented by two vowel characters.
Why Do We Use Diphthongs?
Diphthongs occur when vowels sound differently or make a new sound. The reason is that it is working with conjunctions and with another vowel at the same time. The letter 'i' can sound different in two different words. Take a look at the example below:
s
As you can see, the vowel sound /i/ created a new sound and shifted into a diphthong /aɪ/.
Diphthongs in Dialects and Accents
Diphthongs can vary between different English dialects and accents. Because the way people pronounce words can be different based on a specific accent or dialect. So that a monophthong can become a diphthong or vice versa. Take a look at an example of the Southern accent in America:
As you can see, the single vowel in the word 'caught' shifted into a diphthong.
Warning
It is not always possible to identify a diphthong by its spelling. So do not confuse diphthongs with disyllabic vowel pairings. For example:
As you can see, the word 'reign' contains a diphthong /ei/. But the word 'reinvent' obviously has three syllables (re-in-vent).