defence mechanism vs defense mechanism

defence mechanism and defense mechanism both are nouns.

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

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

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

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

defence mechanism (noun)	defense 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