Synonyms for series

noun

rank, file, line, row, set, train, range, list, string, chain, order, sequence, succession, group, procession, continuity, column, cordon, progression, suite, category, classification, tier, suit, scale, array, gradation.

series applies to a number of similar, more or less related things following one another in time or place a series of concerts; sequence emphasizes a closer relationship between the things, such as logical or casual connection, numerical order, etc. the sequence of events; succession merely implies a following of one thing after another, without any necessary connection between them a succession of errors; chain refers to a series in which there is a definite relationship of cause and effect or some other logical connection a chain of ideas

See series in American Heritage Dictionary 4 Synonyms

series succession progression sequence chain train string

These nouns denote a number of things placed or occurring one after the other. Series refers to like, related, or identical things arranged or occurring in order: a series of days; a series of facts.
In a succession the elements follow each other, generally in order of time and without interruption: a succession of failures.
A progression reveals a definite pattern of advance: a geometric progression.
In a sequence elements are ordered in a way that indicates a causal, temporal, numerical, or logical relationship or a recurrent pattern: a natural sequence of ideas.
In a chain the elements are closely linked or connected: the chain of command; a chain of proof.
Train can apply to a procession or to a sequence of ideas or events: a train of mourners; my train of thought.
A string consists of similar or uniform elements likened to objects threaded on a long cord: a string of islands; a string of questions.

See series in Webster's New World Roget's A-Z Thesaurus II

noun

A number of things placed or occurring one after the other: