WordReference Random House Learner's Dictionary of American English © 2015
ex•per•tise1 /ˌɛkspɚˈtiz/USA pronunciation n. [uncountable]

    expert skill or knowledge.

Collins Concise English Dictionary © HarperCollins Publishers::

expertise /ˌɛkspɜːˈtiːz/ n
  1. special skill, knowledge, or judgment; expertness
Etymology: 19th Century: from French: expert skill, from expert

'expertise' also found in these entries:

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