Japanese · Pronunciation Guide

How do you pronounce "いっぱい" in Japanese?

Q: How do you pronounce いっぱい in Japanese?

いっぱい is pronounced with the stress described below. In IPA it is written /ip.pa.i/. It means “full.” i-p-pa-i, four beats — and the second one is a full beat of silence with the lips already sealed.

i-p-pa-i, four beats — and the second one is a full beat of silence with the lips already sealed.

いっぱい /ip.pa.i/

ippai

Four slots, and one of them is nothing but a stopped breath. English writes doubled consonants without doubling their duration, so "ippai" reads as two syllables and gets two beats; Japanese measures four. Count them: i, silence, pa, i.

Listen: いっぱい

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Sound it out

i An i with the tongue high and forward, held only briefly.

p (small っ) The geminate: close the lips at the end of the i and simply hold them shut, blocking all airflow, for a complete beat before releasing. It is silence with the mouth in position, not a harder or louder p.

pa The release, into a bright short a. The p bursts out of the held closure — that burst is what makes the silence audible in retrospect.

i A final lone i, a full beat, arriving off the a with no glide connecting them.

Hear it in a sentence

コップは水でいっぱいです。

Koppu wa mizu de ippai desu.

The glass is full of water.

Listen: コップは水でいっぱいです。

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コップは水でいっぱいです stacks two geminates in one sentence — コップ (ko-p-pu) has the same held silence as いっぱい. Hearing the same device twice in a row makes the point better than any explanation: both words have a beat where nothing at all happens, and both would sound truncated without it.

Where English speakers slip

The trap is treating the double p as emphasis — "ip-PIE" with a punchy consonant and a fused ending. Two separate errors there. Hold the lips shut long enough that a listener notices a gap, and then keep the final a and i as distinct beats rather than merging them into the English word "pie."