What is the definition of Approximate Sounds?

Ah, approximate sounds! They're like the bumbling bros of auditory world - they try to mimic human speech but end up sounding suspiciously like a cross between a grumpy cat and a malfunctioning robot. They're not exactly singing karaoke, but they're trying their best!

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Now, here's an unsettling example sentence using our "grammar" of approximate sounds: "The moon, with its eerie, 'oooooo' laughter, approached the unsuspecting astronaut, 'hhhhhh...' hoping not to scare him off with its... um... unique sonic signature." Remember, in this cosmic drama of near-sonicity, the astronaut probably just thought he was being chased by a giant, cosmic, sound-activated hairpin!