Japanese has only five vowel sounds: あ (a), い (i), う (u), え (e), and お (o). That's far fewer than English, which has around 15 vowel sounds depending on the regional accent. The simplicity is good news — but it also means each vowel has to be precise.

The Five Vowels

あ a

Sounds like the "a" in "father" — an open, relaxed sound. Open your mouth wide and say "ah" without rounding your lips. Not like the "a" in "cat" or "cake."

Common mistake: English speakers often pronounce it like the "a" in "cat." Keep it open and relaxed.
い i

Sounds like the "ee" in "meet" — but shorter and without the gliding motion (the way English "ee" tends to slide a little). Spread your lips slightly and keep the sound crisp and steady.

This is usually the easiest vowel for English speakers. Just keep it short and clean.
う u

This is the trickiest vowel. It's not like the English "oo" in "food." Your lips should stay relaxed and unrounded — almost flat. Think of blowing out a candle gently without puckering your lips.

Key difference: English "oo" rounds the lips. Japanese う keeps them relaxed. Practice in a mirror.
え e

Sounds like the "e" in "bed" or "red" — a clean, short "eh" sound. Don't let it slide into "ay" as in "day." Keep it steady and flat.

Common mistake: saying "ay" instead of "eh." The Japanese え never glides.
お o

Sounds like the "o" in "go" but without the glide into "ow." It's a pure, round "oh" sound. Your lips should be slightly rounded and the sound should stay steady.

Keep it short and pure — don't let it turn into "oh-oo" like the English "go."

Why Vowel Precision Matters

In Japanese, vowel sounds can change the meaning of a word entirely:

おばさん (obasan) = aunt
おばあさん (obaasan) = grandmother

おじさん (ojisan) = uncle
おじいさん (ojiisan) = grandfather

The difference is a long vowel versus a short one. Getting vowel length wrong doesn't just sound off — it can change what you're saying completely.

Long Vowels

Japanese has long versions of each vowel, held for roughly twice the duration:

  • aa — written as ああ in hiragana (e.g., おかあさん = mother)
  • ii — written as いい (e.g., おいしい = delicious)
  • uu — written as うう (e.g., くうき = air)
  • ei or ee — often written as えい (e.g., せんせい = teacher)
  • ou or oo — often written as おう (e.g., おとうさん = father)

In katakana, long vowels are simply marked with a dash: ー (e.g., コーヒー = coffee).

Silent and Whispered Vowels

In natural speech, the vowels i and u sometimes become very quiet or nearly silent, especially between voiceless consonants (sounds made without your vocal cords vibrating — like k, s, t, h, p) or at the end of a word:

  • すき (suki, to like) — often sounds like "ski"
  • です (desu, is/am) — often sounds like "des"
  • ください (kudasai, please) — the く sounds like just "k"

This is called vowel devoicing — the vowel loses its voiced sound and becomes a whisper, or almost disappears. You don't need to force it; it happens naturally as you speak faster. As a beginner, it's fine to pronounce every vowel clearly.

Practice Tips

  1. Start with the vowel row — Practice saying あ、い、う、え、お slowly and clearly before moving to consonant combinations.
  2. Use a mirror — Check that your lips stay unrounded for う, and that you're not adding English glides to え and お.
  3. Record yourself — Compare your pronunciation to native audio. Japanese vowels are remarkably consistent — the あ in any word always sounds the same.
  4. Practice with pairs — Say おばさん then おばあさん back to back. Can you feel and hear the length difference?

Write the five vowel characters yourself — the sounds stick when your hand knows them.

Start Writing Hiragana