Synonyms: class, classify, assort, separate, sort, sort out
Definition: arrange or order by classes or categories
Usage: How would you classify these pottery shards--are they prehistoric?
Similar words: categorise, categorize
Definition: place into or assign to a category
Usage: Children learn early on to categorize
Definition: assign to a class or kind
Usage: How should algae be classified?; People argue about how to relegate certain mushrooms
Similar words: assign, attribute
Definition: decide as to where something belongs in a scheme
Usage: The biologist assigned the mushroom to the proper class
Synonyms: classify
Definition: declare unavailable, as for security reasons
Usage: Classify these documents
Similar words: restrict
Definition: place under restrictions; limit access to
Usage: This substance is controlled