The phrase "turn green" refers to the change of color from any other color to green. However, there are several synonyms to this phrase such as become verdant, change to emerald, become grassy, turn lime, and transform to olive. While all these synonyms describe the same transformation, they can help make your language more descriptive and engaging. The use of synonyms can also help avoid repetition in your writing, making your work more engaging to read. Whether you are describing the change of a leaf, light, or even a person's expression, using synonyms for "turn green" can help your writing stand out.