イ

noun

first in iroha order; a; i

Used to denote the first item in a sequence based on the traditional iroha ordering, analogous to 'a' or 'i' in English. Often seen in lists, classifications, or as a label.

See also: いろは順

• 選せん択たく肢しのイを選えらんでください。

  Please choose option (a).

• この分ぶん類るいでは、イが最もっとも基き本ほん的てきなカテゴリーです。

  In this classification, 'i' is the most basic category.

noun

A (musical note)

Used mainly in key names or musical contexts to refer to the note A. Not a common standalone word for the note in everyday speech, where ラ is more typical.

• この曲きょくはイ長ちょう調ちょうで書かかれている。

  This piece is written in A major.

noun

Indonesia (abbreviation)

Abbreviation for インドネシア. Used in compounds or shorthand contexts, such as 日イ関係 (Japan-Indonesia relations).

See also: インドネシア

• 日にちイ首しゅ脳のう会かい談だんが行おこなわれた。

  A Japan-Indonesia summit meeting was held.