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いち

ichi
noun★Beginner
formal

one (number)

これは一です。

This is one.

💡

Used as a standalone number or in counting.

formal

first (ordinal number)

一位は田中さんです。

The first place is Mr. Tanaka.

💡

When used as an ordinal number, it is often written as '第一' (daiichi).

Collocations

一番number one, the best一緒にtogether

Synonyms

Antonyms

Related Phrases

一石二鳥idiom
kill two birds with one stone

💡Pro Tip

Counting Practice

Use 'いち' when counting in sequence, but 'ひとつ' when counting objects.

⚡Gold Rule

Ordinal Usage

For ordinal numbers, use '第一' (daiichi) instead of 'いち'.

📖Word Origin

Derived from the Sino-Japanese numeral for 'one', originating from Middle Chinese.

📝Usage Notes

In modern Japanese, 'いち' is often used in counting and numbering, while 'ひとつ' is more common for counting objects.

Word Breakdown

いち
one
root
和英辞典

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