Taper off is a phrase that refers to a gradual decrease or reduction in something. Some synonyms for taper off include peter out, dwindle, wane, lessen, decline, ebb, subside, and decrease. These words suggest a gradual fading or reduction of something rather than an abrupt end. Taper off is often used in the context of withdrawal or cessation of something like medication or activity. By using these alternative words, you can add variety to your vocabulary and communicate more effectively. Understanding the nuances of different synonyms for a word allows you to choose the best one for the specific situation or context.