piing

/ˈpaɪɪŋ/
verb
  1. The present participle of 'pi'; making a short, high-pitched sound, like a beep or squeak.
    • I could hear the microwave piing from the other room.
    • The smoke detector kept piing until we changed the battery.
    • The little robot was piing softly as it moved across the floor.
Synonyms