The common term "razor knife" has a handful of synonyms, depending on the geographic location and industry. In the UK, a popular synonym is "Stanley knife," which is named after the tool brand that made it well known. Other synonyms include "box cutter," "utility knife," and "carpet knife," which are often used in the construction and packaging industries. In the medical field, a razor knife is known as a "scalpel," and in the culinary industry, it can be referred to as a "paring knife." These synonyms are often used interchangeably and can be found in various fields and applications.