In linguistics terms the difference between alternation and conversion
is that
alternation is ablaut while
conversion is the process whereby a new word is created without changing the form, often by allowing the word to function as a new part of speech.
In lang=en terms the difference between alternation and conversion
is that
alternation is the "
inclusive or" truth function while
conversion is a change or reduction of the form or value of a proposition.
In computing terms the difference between alternation and conversion
is that
alternation is a construct in a regular expression that can match any of several specified subexpressions while
conversion is a software product converted from one platform to another.
As nouns the difference between alternation and conversion
is that
alternation is the reciprocal succession of (normally two) things in time or place; the act of following and being followed by turns; alternate succession, performance, or occurrence; as, the alternation of day and night, cold and heat, summer and winter, hope and fear while
conversion is the act of converting something or someone.