Equivocation is the use of a phrase or word that has more than one meaning and implying that both meanings are the same.

There are, for instance, two meanings of the word, evolution. One is micro evolution: the small changes within a kind of plant or animal. Another is macro evolution: the idea that plants or animals can change from one kind to another.

The reality is that this is a very clever deception.  The problem that evolutionism has is whether there are minor changes within a kind of animal or plant.  The question is this: is there any evidence anywhere that random chance has ever added any information to the genetic material in any cell anywhere?  The claim of evolutionism is that information is created by random chance.

Micro evolution says that there can be variations within the instructions that are already in the gene pool. No one argues with that observable fact. Because of the many creatures that are reproducing themselves, their is a vast supply of information in the gene pool. Micro evolution refers to the small changes that result from the selections that are made from this vast supply of information. Macro evolution claims that we can add information and organization to the gene pool by random chance, which would be in direct conflict with the known and testable laws of science. Scientists have tried to prove that micro evolution plus time equals macro evolution, but, after about 200 years of work, have been unsuccessful.

The use of equivocation is a method by which we can fool ourselves or others.

Other examples of equivocation:
Two meanings of the word, liberal.
Two meanings of the word, science.
Two meanings of the word, logic.
Two meanings of the word, axiom.

Evolution isn't science.