What is inting?

My understanding of inting is that it is intentionally feeding. I get accused of inting a lot. I have recently made it a goal to try to raise all my champs to lvl 5 mastery so that way I have an understanding how the champ works and I can find out which champs I work best with. When I am in-game, especially with a new champ I will die a few times to the enemy champ. I do not intentionally feed the other team. Normally I will get between 5 to 10 deaths in a game. I will commonly have other player tell me they are reporting me for inting. I want to know how to know if I am inting and how riot determines whether a player should be banned for inting?
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