noun

• (uncountable) The state of being sequent or following; order of succession.
  "Complete the listed tasks in sequence."
• (mathematics) An ordered list of objects, typically indexed with natural numbers.
• (now rare) A subsequent event; a consequence or result.
  "he found no words to convey the impressions he had received; then he gave way to the anger always the sequence of the antagonism of opinion between them."
• (card games) A meld consisting of three or more cards of successive ranks in the same suit, such as the four, five and six of hearts.

verb

• (transitive) To arrange (something) in an order.
  "We sequenced the code to keep it organised."
• (transitive, biochemistry) To determine the order of monomers in (a biological polymer), e.g. of amino acids in (a protein), or of bases in (a nucleic acid).
• (transitive, music) To produce (music) with a sequencer.
• (intransitive, uncommon) To proceed through a sequence or series of things.
  "Children start to make meanings and connections as soon as they encounter the book. This starts with the initial analyses and inferences they make when they see the book cover and continues as they sequence through the interior illustrations."