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Among several mouth morphemes in ASL (American Sign Language), the mouth movement AHH is a common usage.
The mouth movement AHH is commonly used when describing a long distance. E.g. FAR; a baseball ball flying high and far.
Video: FAR-ahh.
It's also used when describing emotions as "in awe", "very shocked",
Another usage of AAH is when describing something very long in some contexts. E.g. HALLWAY+aah. Not all can be used with AAH for "very long" time/distance.
Related topics: mouth morphemes
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