The phrase "an earning" is correct and usable in written English.
It can be used when referring to a specific instance or amount of income or profit, often in financial contexts.
Example: "The company reported an earning of $1 million for the last quarter."
Alternatives: "a profit" or "an income".
Late last year the ATP Player Council, with Federer as its president, began its push for more prize money at Grand Slam tournaments, particularly for early-round losers, in an attempt to address an earning gap in a top-heavy sport.
This could help offset the tax penalty that comes with having an earning spouse, which pushes families into higher tax brackets.
In order to stop the players of tomorrow being out of pocket and susceptible to match-fixers the PFA, as part of its life skills programme, teaches young players aged 16 to 18 coming into the game basic financial realities, including that an earning career in football might be short.
In additional to battling monsters Mike was great an earning WoW gold, the in-game currency that the game's developers use to keep players playing the game.
For the sake of conservative estimate, Diyya was taken into account instead of the 'life-time' monetary loss of an earning person who commits suicide that can be extended to the whole span of productive life, with annual earnings discounted at 3-53-5%
Think of two examples: First, an earning example.
