Definition of sleepsuit in English:

sleepsuit

noun

British
  • A young child's one-piece garment, typically worn as nightwear.

    • ‘A good blanket is still very popular, as are sleepsuits and baby growbags (mini sleeping bags).’
    • ‘A fleecy-lined sleepsuit, with built-in feet, would remove the need for any man to drag the duvet off whoever he's lying next to and mummify himself in it.’
    • ‘We managed to get him some new clothes though - a sleepsuit and a tracksuit.’
    • ‘These club shops are keen to grow their own clients, which is why the Celtic velour playsuit, with the option of matching bootees and velour hat, starts at the 0-3 months age group, as does the Hoopy sleepsuit.’

Pronunciation:

sleepsuit

/ˈsliːpsuːt/