The word diker can have a few different synonyms depending on the context in which it is used. In some cases, the word may be replaced by the term ditcher, which refers to someone who constructs or digs ditches. Other synonyms for diker may include the term excavator, which refers to someone who digs or creates holes in the ground, or the term trencher, which refers to someone who digs trenches for various purposes. Additionally, the word may be replaced by the term grader, which refers to someone who levels out the ground to create specific slopes or angles. Ultimately, the choice of synonym will depend on the specific meaning and context of the word diker in a given sentence or situation.