Dai-ichi

dai-ichi (第一), is a compound, modifier phrase of Japanese origin, meaning , or . In kanji, "dai" ("number") is 第 and "ichi" ("one") is 一. "Dai" is also defined "ordinal number marker." It is this feature that makes the phrase a modifier, or an adjective, describing a noun, as first. Number one functions in the same way.

The phrase is also used without the hyphen, as daiichi.

Dai-ichi is frequently used in proper names, hence capitalized; also Dai-Ichi and occasionally Dai Ichi. There is a sound-alike common first name with different spelling.

Dai-ni (第二) means or , using two parallel bars (二) or "2" for "ni"; also daini

Dai-san (第三) means number three or third, using three parallel bars (三) or "3" for "san"

And continuing for 4, 5, 6, etc.

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