Vowels form one of the two principal classes of speech sound, the other being that of consonants. Vowels vary in quality, in loudness and also in quantity (length). They are usually voiced, and are closely involved in prosodic variation such as tone, intonation and stress. Vowel sounds are produced with an open vocal tract. The word vowel comes from the Latin word vocalis, meaning "vocal" (i.e. relating to the voice). In English, the word vowel is commonly used to refer both to vowel sounds and to the written symbols that represent them.
In Alphablocks, the vowels are bright-colored striped Alphablocks.
Other vowels: OI, OU, AYER, AWYER, OWER(short [in tower]) and OWER(long in lower)
In Series 4, each vowel has a Long Vowel Song episode:
- A - Name
- E - Sleep
- I - Mine
- O - Home
- U - Blue
- A (green)
- E (red)
- I (purple)
- O (orange)
- U (blue)
- Y (yellow) (sometimes)
- AI (as in "rain")
- AY (as in "day")
- A-E (as in "game")
- AE only appears in the game version of Space and is the perfect digraph to sound out nonsense words like PAE and CAE.
- EY (as in "grey") The digraph doesn't say the long "a" sound in the series so far.
- EE (as in "bee")
- EA (as in "pea")
- EY (as in "key") only appears in the episode Key where KEY is the only word sounded out.
- E-E (as in "these") The split-digraph only appears in two episodes: Magic and Sleep.
- IGH (as in "high")
- IE (as in "pie") only appears in the episode Mine.
- I-E (as in "mine")
- OA (as in "toad")
- OE (as in "toe") only appears in the episode Home.
- OW (as in "glow") says the long "o" sound, which only happens in Glow.
- O-E (as in "mole")
- OO (as in "moo") The digraph's sound can be long or short. It's short sound sounds like: "uuh" as in "book".
- UE sounds like "u" (as in "cue") and "oo" (as in "blue"). The digraph only appears in Blue.
- EW sounds like "u" (as in "new") and "oo" (as in "grew"). The digraph only appears in Blue.
- U-E sounds like "u" (as in "mule") and "oo" (as in "lute").
Different Vowel Sounds
- AR (as in "car")
- AU (as in "Paul") only appears in the episode Outlaw. Like O, the digraph only says its sound every time it appears.
- AW (as in "law") Like O, the digraph only says its sound every time it appears.
- ER (as in "her") Like O, the digraph only says its sound every time it appears.
- IR (as in "bird") only appears in the episode Birthday Girl.
- OI (as in "coin") only appears in two episodes: The End (the only episode where OI makes words) and Cowboy.
- OR (as in "corn")
- OW (as in "cow")
- OU (as in "sound") Its only TV appearance is the episode Cowboy.
- UR (as in "fur") only appears in three episodes: UFO, The End and Alphabet.
- AIR (as in "fair") is a word-trigraph that only appears in two episodes: UFO and Fair.
- EAR (as in "ear") is a word-trigraph that only appears in two episodes: UFO and Fair. The trigraph never speaks without a word being made with it.
- IGH (as in "high") is the only long vowel trigraph.
- OAR (as in "oar") is a word-trigraph that only appears in UFO, where the trigraph itself is the only word sounded out.
- OOR (as in "door") is a trigraph that only appears in Alphalympics, where DOOR is the only word sounded out.
- URE (as in "cure") is a trigraph that only appears in Fair, where CURE is the only word sounded out.
Episodes where all vowels appear
- Zzzzz (E only appears as Silent E)
- Little Red N
- Book (as letters, except O)
- Alphabet (I and O only appears as letters)
- All the vowels have become a capital letter in at least one episode.
- In their prototype design, they have no striped bodies. They are just one solid color.
- Season 1 has the most episodes where all vowels are present, while Season 4 has the least.