Definitions from Wiktionary ( )

▸ verb:  To make distinct or separate from what is common, particularly:
▸ verb:  (obsolete, intransitive) To go into specific details.
▸ verb:  (rare, transitive) To specify: to mention specifically.
▸ verb:  (uncommon, transitive) To narrow in scope.
▸ verb:  (biology, transitive) To make distinct or separate due to form or function.
▸ verb:  (intransitive) To become distinct or separate from what is common, particularly:
▸ verb:  To focus one's study upon a particular skill, field, topic, or genre.
▸ verb:  To focus one's business upon a particular item or service.
▸ verb:  (usually derogatory) To be known or notorious for some specialty.
▸ verb:  (transitive) To train (someone) in a specialty.

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