Interstices is a term used to describe the small gaps or spaces between objects and surfaces. Synonyms for interstices include crevices, gaps, spaces, intervals, holes, openings, slits, cracks, fissures, and chinks. These terms are often used interchangeably to describe the small areas or gaps between objects, such as in building construction, mechanical engineering, and various other fields. Each of these synonyms has its own nuances and connotations, but they all refer to the small separations or gaps between objects and surfaces that are often overlooked but can play a significant role in the overall functioning of a system or structure.