This has our heads rattled!

A new audio illusion is going viral.

This one sounds like it could be one of nine different words and has left a lot of people scratching their heads.

The words people hear include:

  1. iPhone
  2. Fortnite
  3. 4-9
  4. 9-4
  5. nightfall
  6. nice one
  7. ninth floor
  8. throw a knife
  9. an eye for an eye

Twitter user, Matt Deegan shared the clip in the past few days. What word do you hear?

The online debate is similar to the ‘Yanny or Laurel’ clip which surfaced back in May 2018.