Grind into is a commonly used phrasal verb that means to crush or pulverize something into small particles. There are several synonyms for this term, such as crush, pulverize, powder, grind up, break up, shred, and mull. Crushing and pulverizing signify reducing something into small particles, while powdering refers to the transformation of a solid into a fine powder. Grinding up and breaking up imply reducing something to small pieces, whereas shredding signifies the act of tearing something up into small fragments. Finally, mulling refers to the preparation of spices by grinding them into a fine powder. These words can be substituted for grind into, depending on the context and the precise meaning you would like to convey.