hissing

He could hear rustling and hissing in the rubbish all round him and gave the Call a second time, to make sure.

Then Kaa opened his mouth for the first time and spoke one long hissing word, and the far-away monkeys, hurrying to the defense of the Cold Lairs, stayed where they were, cowering, till the loaded branches bent and crackled under them.

The Snake, slightly hissing, said: “There can henceforth be no peace between us; for whenever I see you I shall remember the loss of my tail, and whenever you see me you will be thinking of the death of your son.”

The long sweep of green water roaring forever down, and the thick flickering curtain of spray hissing forever upward, turn a man giddy with their constant whirl and clamour.