Is the I in word until a short vowel?

No, the "i" in "until" is not a short vowel. It is a long vowel sound.

Here's why:

* The "i" sound is a long "i" sound: It sounds like the "i" in "bike" or "time."

* Short vowels are typically followed by a consonant: Short vowels are usually followed by a single consonant, like the "a" in "cat" or the "e" in "bed."

Let me know if you have any other vowel questions!