(psychiatry) a defense mechanism represses emotional conflicts which are then converted into physical symptoms that have no organic basis(noun.process)
source: wordnet30
a change of religion(noun.event)
Example: His conversion to the Catholic faith.
source: wordnet30
interchange of subject and predicate of a proposition(noun.communication)
source: wordnet30
act of exchanging one type of money or security for another(noun.act)
source: wordnet30
the act of changing from one use or function or purpose to another(noun.act)
source: wordnet30
The act of turning or changing from one state or condition to another, or the state of being changed; transmutation; change.(noun)