arrest vs taking into custody

arrest and taking into custody both are nouns.

Word	Noun	Adjective	Verb	Adverb
arrest	Yes	No	Yes	No
taking into custody	Yes	No	No	No

As nouns, arrest and taking into custody are synonyms defined as:

arrest and taking into custody: the act of apprehending (especially apprehending a criminal)

Other synonyms of arrest include apprehension, catch, collar, pinch.

arrest (noun)	taking into custody (noun)
the act of apprehending (especially apprehending a criminal)	the act of apprehending (especially apprehending a criminal)
the state of inactivity following an interruption

arrest (verb)	taking into custody (verb)
hold back, as of a danger or an enemy; check the expansion or influence of
take into custody
attract and fix
cause to come to an abrupt stop