American Heritage Dictionary
(1)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
The staff is always friendly and super-knowledgeable, always ready to answer questions.
She came off as competent and semi-knowledgeable, which is important.— Top Stories - Google News
This was Biden at his best -- knowledgeable, to the point, articulate, aggressive to just the right degree.— WHAT REALLY HAPPENED
This is a position that calls for someone who is knowledgeable, and interested, in technology, but not married to any one school of thought or business ideology.— GigaOM Network
But I did have a thought about how I might place Watergate in perspective for uninformed members of Congress, particularly Republicans; I thought it would be helpful to report a conversation I had with Nixon's most articulate, knowledgeable, and persuasive defender - a conservative Republican about whom members of the committee may have heard.— FindLaw Writ - Recent Articles

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about twice a week.
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