It is not uncommon. Instead of a long answer I'll just refer you to: http://www.dana.org/news/brainhealth/detail.aspx?id=9790
the homophone for yawn is.............you! haha get it lol
Yes, yawn is an onomatopoeia.
yes they yawn quietly
No whales do not yawn.
The past participle of "yawn" is "yawned."
The typical written expression for a yawn sound is "ho hum."
Insects do not yawn. People necessarily do not yawn only when they are tired. Most people, after reading this, will yawn.
A yawn is normally a response to a change in activity, although if you did not get enough sleep, you could become tired and yawn.
The word 'yawn' is both a verb (yawn, yawns, yawning, yawned) and a noun (yawn, yawns). Examples:Verb: I began to yawn in the middle of the lecture.Noun: The comedian's joke met with a big yawn.An adjective is a word that describes a noun, for example: a big yawn.
to yawn is 'bailler' in French.
Bear yawn