The wind tore his words apart, transformed them into meaningless sounds.

He frowned, blinking at me, and stammered some meaningless sounds.

My voice had a harsh and meaningless sound in the stillness, like somebody sawing a board.

In 2086 we consider that the 'perfect state' is a meaningless sound having no objective reality.

The people looked indistinct; their conversations were just meaningless sounds.

I love the meaningless sound of my official figurehead title!

The dull, meaningless sounds of the family became clearer to her.

O'Brien was talking to her but the words came through as meaningless sounds.

- reducing the voice to meaningless sound that he noticed no more than a fly's buzzing.

The phrase is also a form of white noise, or meaningless sound to fill up a moment between phrases.