Sleek over is a phrasal verb that refers to smoothing or making something neat, especially when it comes to hair or clothing. There are a variety of synonyms that can be used in place of sleek over, including tidy up, groom, straighten, neaten, and polish. These synonyms all convey the same idea of making something look more put-together, but may be more appropriate in different contexts. For example, tidy up might be used for a messy room, while polish might be used for shining shoes or silverware. No matter which synonym is used, the goal is to create a more polished and streamlined appearance.