sick parade vs sick call

sick parade and sick call both are nouns.

Word	Noun	Adjective	Verb	Adverb
sick parade	Yes	No	No	No
sick call	Yes	No	No	No

As nouns, sick parade and sick call are synonyms defined as:

sick parade and sick call: the daily military formation at which individuals report to the medical officer as sick

sick parade (noun)	sick call (noun)
the daily military formation at which individuals report to the medical officer as sick	the daily military formation at which individuals report to the medical officer as sick