せえの

also: せーの · せいの · セイノー · いっせいの · いっせーの

せ

え

の

Meanings

ready, set, go!; all together now!; heave-ho!

Interjection used to coordinate a simultaneous group action, like lifting a heavy object or starting a race. The exact English equivalent depends on context.

せーの、で持もち上あげよう。
On 'ready, set, go,' let's lift it together.
みんなでせーの！
All together now!

Related words

いっせいに
いっせいに is an adverb meaning 'all at once' or 'simultaneously,' used in descriptive sentences, while せーの is an interjection for coordinating an action.

Written forms

せーのUsage38%
Most common modern spelling; used to synchronize a group action.
せえのUsage63%
Variant with a long vowel; also common, especially in casual speech.
せいの
irregular kana usage
Variant spelling; irregular kana usage.
いっせーの
Extended form with いっ; used in some regions or for emphasis.
いっせいの
irregular kana usage
Extended form with いっせい; irregular kana usage.
セイノー
Katakana spelling with a long final vowel; may appear in manga or casual writing.

Etymology

The origin is uncertain. It may derive from 一斉に (いっせいに, 'all at once') or a contraction of それ (sore) and えい (ei), but there is no consensus.