Japanese

Pronunciation

Noun 1 :

• (Tokyo) い​っぱい [íꜜppàì] (Atamadaka - [1])^[1]
• IPA^(key): [ip̚pa̠i]

Noun 2, Adverb :

• (Tokyo) いっぱい [ìppáí] (Heiban - [0])^[1]
• IPA^(key): [ip̚pa̠i]

Noun

いっぱい ‎(romaji ippai)

1. 一杯: one cup full; one (alcoholic) drink
2. 一杯: full

Adverb

いっぱい ‎(romaji ippai)

1. 一杯: a lot

Usage notes

This adverb is essential in everyday conversation despite not being emphasized so much in formal Japanese lessons, similar to the way "a lot" is discouraged in favor of "much" or "many" in English lessons.

Etymology 2

From 一 (いち) and 敗 (はい)

Pronunciation

• (Tokyo) いっぱい [ìppáí] (Heiban - [0])^[1]
• IPA^(key): [ip̚pa̠i]

Noun

いっぱい ‎(romaji ippai)

1. 一敗: one defeat

References

1. 1 2 3 1974, 新明解国語辞典 (Shin Meikai Kokugo Jiten), Second Edition (in Japanese), Tōkyō: Sanseidō