“Inside” is a versatile English word that can function as a noun, adjective, adverb, or preposition. As a noun, it refers to the inner side, interior, innermost thoughts, or an informal term for the organs or digestive system. As an adjective, it describes something that is located within, originating from within, or near the center of a sports field such as hockey or football. As an adverb, it means within something, internally, or informally, within a prison. As a preposition, it denotes being inside something, within one’s thoughts, within a certain timeframe, or closer to the center in sports like soccer or rugby.

Some phrases commonly associated with “inside” include “Inside Man” referring to an undercover agent or someone who has insider information, “局內人” in Chinese can be translated as “inside person” or “insider”, “內部人士” means “inside person” or “insider” as well, and “內線隊員” can be translated as “inside player” or “inside team member”. Additionally, “Inside Job” refers to the act of someone in a position of trust stealing or conducting illegal activities from within, “監守自盜” in Chinese can be translated as “guarding and stealing by oneself”, “內幕工作” means “internal work” or “insider trading”, and “內勤” can be translated as “internal affairs” or “office duty”.