noun

• That which is deducted; that which is subtracted or removed
• A sum that can be removed from tax calculations; something that is written off
• (law, finance) A sum withheld from an employee's pay for the purpose of paying tax.
• (logic) A process of reasoning that moves from the general to the specific, in which a conclusion follows necessarily from the premises presented, so that the conclusion cannot be false if the premises are true.
• A conclusion; that which is deduced, concluded or figured out
• The ability or skill to deduce or figure out; the power of reason