employment vs recycling

employment and recycling both are nouns.

Word	Noun	Adjective	Verb	Adverb
employment	Yes	No	No	No
recycling	Yes	No	No	No

As nouns, recycling is a hyponym of employment; that is, recycling is a word with a more specific, narrower meaning than employment:

employment: the act of using
recycling: the act of processing used or abandoned materials for use in creating new products

Other hyponyms of employment include practice, play, abuse, misuse, development, exploitation, application, practical application.

employment (noun)	recycling (noun)
the occupation for which you are paid	the act of processing used or abandoned materials for use in creating new products
the act of using	used or abandoned materials for use in creating new products
the act of giving someone a job
the state of being employed or having a job