a flexible line of connected metal rings or links, used for connecting, fastening, holding etc

succession, series

a forward movement in space or time

progress, advance

a number of people, vehicles etc moving forward and following each other in an orderly way

parade, sequence

a number of people or things in a line; a noisy conversation, activity or disturbance

sequence, series

that which follows or arises out of (an earlier event); a story, film etc continuing the plot etc (of an earlier one)

follow-up

a connected series of events, ideas etc

series, order

a number of connected things, events etc coming one after another

order, succession

a number of railway coaches etc joined together; to give (a person, animal) teaching and practice in a skill or profession

series