O has various meanings in the Internet - SMS - Text & Chating category. Discover the full forms, definitions, and usage contexts of O in Internet - SMS - Text & Chating.
Involuntary opening of the mouth with respiration, breathing first inward, then outward. Yawning is often caused by the power of suggestion. Repeated yawning may be a sign of drowsiness. It can also sometimes be a sign of depression.
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