The word "gritter" refers to a machine that is used to spread grit or salt on icy roads to reduce the chances of accidents. It is an essential tool during winters in regions with heavy snowfall. Some synonyms for the word "gritter" include "salt spreader," "ice melt sprayer," "snow blower," "salt truck," "sand sprayer," and "de-icer spreader." These machines are equipped with motors that rotate the spreader discs, which disperse the grit or salt over the surface of the road. The synonyms for the word "gritter" may differ depending on the region or the specific application it is used for, but they all serve the same purpose of ensuring the safety of drivers during winters.