standby, stand by
Word list · S
Use standby as a noun or adjective. Use stand by as a verb.
Correct (n.): The system enters standby after 5 minutes.
Correct (adj.): Set a standby time for the display.
Correct (v.): Stand by for results.
Incorrect: The system will standby after 5 minutes.
Choose the wording that fits your meaning, audience, and voice.