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Beginner's Dictionary
       

sub·sti·tute

substitute

 
 
pronunciation:
suhb stih tut
parts of speech:
noun, verb
part of speech: noun
definition: a person or thing that takes the place of another.
She was the substitute in the class when the teacher got sick.Honey can be a substitute for sugar.
similar words:
replacement
 
part of speech: verb
inflections: substitutes, substituting, substituted
definition: to put or use in place of another person or thing.
She substituted margarine for butter in the recipe.
similar words:
change, exchange, replace
derivations: substitutable (adj.), substitutional (adj.), substituter (n.), substitution (n.)