Sick has 14 different meanings across 4 categories:
Noun · Verb · Adjective · Proper Noun
Vomit.
"The smell of rotten eggs made me feel so sick that I ran to the bathroom immediately."
In plain English: A sick is an old-fashioned word for a person who is very ill or has a contagious disease.
"The coach has to remove the sick player from the game immediately."
eject the contents of the stomach through the mouth
"After drinking too much, the students vomited"
"He purged continuously"
"The patient regurgitated the food we gave him last night"
To vomit.
"The editor corrected my typo, changing 'sic' to 'sick', but I insisted that was exactly how the author had written it in the original manuscript."
Alternative spelling of sic
In plain English: To make someone feel ill by touching them with your hands.
"The cold weather made my dog sick."
Usage: Use this verb form only when referring to inciting or goading someone into action, as it is an archaic variant of the word sic. In modern English, avoid using "sick" as a verb unless you are quoting historical texts.
deeply affected by a strong feeling
"sat completely still, sick with envy"
"she was sick with longing"
shockingly repellent; inspiring horror
"ghastly wounds"
"the grim aftermath of the bombing"
"the grim task of burying the victims"
"a grisly murder"
"gruesome evidence of human sacrifice"
"macabre tales of war and plague in the Middle ages"
"macabre tortures conceived by madmen"
In poor health; ill.
"The flu has left me feeling so sick that I can barely get out of bed to make coffee."
In plain English: Sick means feeling physically ill or nauseous.
"I felt sick all day after eating that bad fish."
A surname, from German.
"My neighbor Mr. Sick always greets us with a cheerful wave when he walks his dog in the morning."
The word "sick" comes from the Old English sēoc, which originally meant to be ill or grieved. It traveled into modern English through Middle English while retaining its core meaning of being unwell.