Profit is what is gained, after costs are accounted for. In accounting, this is usually measured in monetary terms. In economics, profit is most often measured differently, since costs are opportunity costs.
Profit can be considered as payment for being willing and able to provide funds for net investment (like interest) or for being willing and able to take risks. It is the incentive that drives capitalistic society.
In neo-classical economics, there are a number of different kinds of profit:
A profit however may not indicate a success, or a loss failure. After all many pyrrhic victories could be worse than a simple loss which can be learnt from.
The social profit from a firm's activities is the normal profit plus or minus any externalities that occur in its activity.
The underlying concept was first introduced by Schmalenbach, but the commercial application of the concept of adjusted economicprofit was by Stern Stewart and Co. which has trade-marked their adjusted economicprofit as EVA or Economic Value Added.
A profit, in the law of real estate, is a nonpossessory interest in land similar to the better-known easement, which gives the holder the right to take natural resources such as petroleum, minerals, timber, and wild game from the land of another.
Like an easement, profits can be created expressly by an agreement between the property owner and the owner of the profit, or by prescription, where the owner of the profit has made "open and notorious" use of the land for a continuous and uninterrupted statutory period.
Profits can also be exclusive (guaranteeing the owner of the profit that no other person will be given the right to collect the specified resources on the land).