situation vs the absurd

situation and the absurd both are nouns.

Word	Noun	Adjective	Verb	Adverb
situation	Yes	No	No	No
the absurd	Yes	No	No	No

As nouns, the absurd is a hyponym of situation; that is, the absurd is a word with a more specific, narrower meaning than situation:

situation: the general state of things; the combination of circumstances at a given time
the absurd: a situation in which life seems irrational and meaningless

situation (noun)	the absurd (noun)
a job in an organization	a situation in which life seems irrational and meaningless
physical position in relation to the surroundings
the general state of things; the combination of circumstances at a given time
a condition or position in which you find yourself
a complex or critical or unusual difficulty