When it comes to adding the final touch to a project, your choice of words can make all the difference. Instead of using the phrase "give the final touch to," you might consider alternative synonyms that can convey the same meaning. Some examples include "put the finishing touches on," "add the final polish to," or "give the last bit of refinement to." Other suitable synonyms might include "complete," "finalize," or "conclude." By using these different phrases, you can add variety to your writing and communicate your finalizing process more effectively.