celebratory song; festive poem
A song or poem composed for celebrations, such as weddings, New Year, or other happy occasions. Can be traditional or modern.
We sang a celebratory song at the wedding.
I composed a festive poem to celebrate the new year.
congratulatory waka form
A specific category of waka (classical Japanese poetry) under the 六義 (rikugi) classification, used for congratulatory or celebratory themes. Technical literary term.
See also: 六義
As one of the rikugi, iwaiuta refers to congratulatory waka.
Celebration or congratulation in general; 祝い歌 specifically refers to the song or poem used for the occasion.
Classical Japanese poetry; 祝い歌 in sense 2 is a subcategory of waka.
Standard modern spelling for a celebratory song or poem.
Uses 唄 for 'song', giving a slightly traditional or folk-song feel.
Abbreviated kanji form; less common but still encountered.
Rare abbreviated form with 唄.
Archaic single-kanji spelling; rarely used in modern Japanese.
Compound of 祝い (iwai, 'celebration') + 歌 (uta, 'song'). The reading iwaiuta is a straightforward combination of the kun'yomi readings of the components.