A tiny, almost imperceptible cough, usually hidden behind a mask due to; emphysema, asthma, allergies or the dreaded COVID, so as not to alarm others to your potential of being “the infected.”
I was walking through the grocery store and I had a tickle in my throat but I didn’t want people to think I was contagious so I let out a microcough.
"microcorrespondence": noun. A generally written form of correspondence in which the length of the message and/or the time required to compose it is greatly abbreviated compared to traditional methods of communication (e.g. written letters sent via postal mail). Microcorrespondence is generally electronic in nature and may or may not be addressed to more than one recipient at a time.
"Scholars have begun to wonder whether microcorrespondence works to decrease social isolation or whether it serves to weaken the depth of the average person's social ties."