defense mechanism vs defence mechanism

defense mechanism and defence mechanism both are nouns.

Word	Noun	Adjective	Verb	Adverb
defense mechanism	Yes	No	No	No
defence mechanism	Yes	No	No	No

As nouns, defense mechanism and defence mechanism are synonyms defined as:

defense mechanism and defence mechanism: (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires

Other synonyms of defense mechanism include defence, defence reaction, defense, defense reaction.

defense mechanism (noun)	defence mechanism (noun)
(psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires	(psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires