conversion

A conversion is a change from one religion to another or adopting a religion. (noun)

An example of conversion is a Catholic switching to Taoism.

A conversion is an exchange from one unit of measure to another. (noun)

See conversion in Webster's New World College Dictionary

noun

a converting or being converted; specif.,
1. a change from lack of faith to religious belief; adoption of a religion
2. a change from one belief, religion, doctrine, opinion, etc. to another
Finance
1. an exchange of one kind or class or security for another
2. an exchange of a currency for an equivalent amount of another currency or precious metal
☆ Football
1. an additional scoring opportunity of a point or two, as by kicking, passing, or running with the ball, awarded to a team after it scores a touchdown
2. the score so made
Rugby a somewhat similar play as in football that scores two points after a try
Law
1. unlawful appropriation or use of another's property, resulting in a deprivation of ownership rights
2. an exchange of property from real to personal, or the reverse, as for settling the terms of a will
  in full equitable conversion
Logic the interchanging of the terms of a proposition: by conversion, “All of A is B” becomes “All of B is A”
Math. a change in the form of a quantity, a unit, or an expression without a change in the value
Psychiatry a mechanism by which emotional conflict is transformed into an apparent physical disability affecting the sensory or voluntary motor systems and having symbolic meaning
also conversion reaction and Archaicconversion hysteria

Related Forms:

See conversion in American Heritage Dictionary 4

(kən-vûrˈzhən, -shən)

noun

a. The act of converting.
b. The state of being converted.
A change in which one adopts a new religion, faith, or belief.
Something that is changed from one use, function, or purpose to another.
Law
a. The unlawful appropriation of another's property.
b. The changing of real property to personal property or vice versa.
The exchange of one type of security or currency for another.
Logic The interchange of the subject and predicate of a proposition.
Football An extra point or points scored after a touchdown, as by kicking the ball through the uprights or by advancing the ball into the endzone from the three-yard line.
Psychiatry A psychological defense mechanism by which repressed ideas, conflicts, or impulses are manifested by various bodily symptoms, such as paralysis or sensory deficits, that have no physical cause.
The expression of a quantity in alternative units, as of length or weight.