Organic Lawn Fertilizer

Can you help me understand organic foods? Organic means that the foods were grown with out pesticides or fertilizers, right? does that mean all fertilizers, or just chemical fertilizers? I'm going to be using my compost to fertilize my garden and am not using chemicals (we have well water). Will that mean that the food I grow is organic because there's no chemical fertilizer, or isn't organic because I'm using fertilizer?

Organic means it's grown without Synthetic/Man-made fertilizers and chemicals/pesticides.

There are organic fertiliers made from natural sources – alfalfa meal, bone meal, kelp… etc.

For commercially grown crops, I believe there is a buffer period where a farm has to be free from using chemical products before the crops can even be labeled organic. I guess that allows time for the synthetic stuff to work it's way out of the soil.