seizure vs gaining control

seizure and gaining control both are nouns.

Word	Noun	Adjective	Verb	Adverb
seizure	Yes	No	No	No
gaining control	Yes	No	No	No

As nouns, seizure and gaining control are synonyms defined as:

seizure and gaining control: the act of forcibly dispossessing an owner of property

Other synonyms of seizure include capture.

seizure (noun)	gaining control (noun)
the taking possession of something by legal process	the act of forcibly dispossessing an owner of property
the act of forcibly dispossessing an owner of property
the act of taking of a person by force
a sudden occurrence (or recurrence) of a disease