What is the meaning of Sick?

In poor health; ill.

[with with] Afflicted by (a specific condition, usually medical).

Having an urge to vomit.

Mentally unstable, disturbed.

In bad taste.

[with of] Tired of or annoyed by (something that has lasted a long time or often recurs).

Very good, excellent, awesome, badass.

In poor condition.

Failing to sustain adequate harvests of crop, usually specified.

Vomit.

(especially in the phrases on the sick and on long-term sick) Any of various current or former benefits or allowances paid by the Government to support the sick, disabled or incapacitated.

To vomit.

To fall sick; to sicken.

Alternative spelling of sic (“set upon”).

sick (amazing, awesome, excellent)

alternative form of sik

Source: wiktionary.org