example, specimen, or a representative part or a single item from a larger whole or group / a small portion, piece, or segment that is representative of a whole / a trial or test to evaluate quality, performance, or characteristics in various contexts / in statistics, a subset of a population used to represent the whole / a piece of data or selection taken for analysis, typically used in research or testing / a small amount of something that is shown or given to people to interest them in buying or accepting more / a specific instance or case that illustrates a general rule, concept, or method