gurgle

When he meets adults he stares at them and takes them in, then kindly smiles and gurgles and lets them pat him, ruffle his hair, and take his face in their hands.

Lady Constance delighted in each one, and she personally wrote countless prompt thank-you notes while the babies gurgled in their cradle.

It was as if all the pluck and hope and optimism in the world had just gurgled down the bathtub drain, and there was nothing left anywhere but gloom.

The robot became aware of a gurgling sound, and then a cluster of towering rocks emerged.

"But which tremor signals are true precursors of an eruption, and which are just background 'gurgling'? Our results lay the foundation for improving eruption forecasting in the future."