What is another word for boundary friction?
Pronunciation: [bˈa͡ʊndəɹi fɹˈɪkʃən] (IPA) 
Boundary friction is a term used in physics to describe the resistance force that occurs when an object moves along a surface. It refers to the force between the surface of the object and the surface it is moving along. There are several synonyms for boundary friction, including surface friction, interfacial friction, and contact friction. These terms are used interchangeably and all refer to the same concept. Boundary friction plays an important role in determining the amount of force needed to move an object along a surface and is a key factor in many physical systems, including engines, bearings, and fluid flow.
