No, it is better used to mean perceptive, or sometimes cunning.
It is an old saying meaning that the person is sharp, or very intelligent.
The phrase "as smart as a tack" is a variation of the more common expression "as sharp as a tack." It suggests that someone is very intelligent or quick-witted. The saying uses the image of a tack, which has a sharp point, to imply mental sharpness. However, the expression is sometimes humorously used to indicate the opposite, highlighting someone's lack of intelligence.
tack så mycket means thank you very much, or thanks a lot.
"Knowledgeable" is an adjective in the sentence "She is very knowledgeable" as it is describing the quality or characteristic of "she."
The idiom itself doesn't exist. You can use "skarp som en kniv" or "skarp som en rakkniv" which means sharp as a knife and sharp as a razor, respectively. Since it is a similie it will be understood although it's not a very common expression.
Adroit means that you have a very sharp, intelligent mind. It can also mean that you are very good when performing tasks with your hands.
Tack, but if you want to say thank you very much, it is tack sa mycket
It means really intelligent. A razor is very sharp, so a razor-sharp wit would be a sharp wit, or a smart brain.You can also see this used to refer to someone who is sarcastic, with the meaning "sharp" referring to "cutting" as in slightly mean.
Use your brain very hard.
The adverb in the sentence 'the history teacher is very knowledgeable about world issues' is very.
James's history professor has proven himself very knowledgeable about the second world war.Some users on WikiAnswers are very knowledgeable at answering questions concerning 'Sentence and Word Structure'.
My friend's last name was Smart.The girl was very smart. Though smart, he failed the test.