FINAL

i: high front vowel

Mandarin i is tense and high, as in bǐ and yī. Learn when it is spelled yi, and how it differs from the empty i.

i
Broad IPA
[i]

Mouth & tongue

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Vocal folds: vibrating

TongueTeethUvula

Simplified human pronunciation. The small uvula hangs from the palate; it is not the vocal folds. The wave indicates voicing.

Sound to demonstrate
Tone

High and level, around 55 on the five-level pitch scale.

Voice settings

The mouth starts slightly open. Movement is slowed for observation; the synthetic sound plays once at its original speed. Pause holds the current mouth shape; reset returns to the relaxed position. The panda is a symbolic teaching aid for human pronunciation, not animal anatomy. A simplified teaching model, not a measured or anatomically validated simulation. It shows the soft palate lowering for nasal sounds, but not airflow. Single syllables use eSpeak NG, a synthetic voice on your device. Its pitch range is narrower than natural speech, so use the tone diagrams and word buttons as well. Words and sentences use a voice from your browser or device when one is available. No native recordings are bundled.

Words to practice

Sentence to practice

Listen and compare

Keep the tongue high and forward; round the lips only for the second word.

Pinyin here shows dictionary tones. Spoken tones change in some contexts, such as nǐ hǎo; see the lessons on tone changes.

What you are learning

After most initials, pinyin i is a clear high front vowel. On its own it is written yi. After z, c, s, zh, ch, sh and r the same letter means something different.

What your mouth is doing

The front of the tongue rises close to the hard palate, the jaw is nearly closed and the lips are spread.

Compared with English

English ee in see is close, though many English speakers glide into it. Hold Mandarin i steady from start to finish. The short i in English sit is a different vowel and should not be used.

Build the sound, step by step

  1. Smile slightly and raise the front of your tongue.
  2. Hold yī steadily with no glide.
  3. Say bǐ, dì and qī, with the same tense vowel.

What to watch for

  • Using the vowel of sit makes bǐ sound lax. Tense the tongue.
  • Reading shī or sī with this vowel: those use the empty i.

References & editorial notes

PronounceKit wrote this lesson as practical guidance for English speakers, based on the references below. The comparisons are editorial teaching suggestions. It describes common Mainland Standard Mandarin patterns, not every accent or regional variety, and it has not been independently reviewed by a pronunciation specialist or Mandarin teacher.

Published 5 November 2026