Verse meaning
This is the verse translation, not a definition of the individual word.
O you who believe, do not ask about things which, if they are made known to you, would only cause you hardship[1]. If you inquire about them while the Qur’an is being revealed, they will be made known to you. Allah has pardoned you for it. Allah is All-Forgiving, Most Forbearing.
Source
[1] i.e., especially contrived questions, if responded to will widen the circle of divine ordinances, which might cause difficulty for the believers to act on them.
Source: QuranEnc.com · English Translation - Rowwad Translation Center
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