In biochemistry, a biopolymer's sequence is synonymous with its primary structure: the list of basic building blocks constituting the polymer (for example a DNA sequence). Determining such a sequence is called sequencing.
In mediæval Latin literature, a sequence (Latin sequentia) is a poem written in a non-classical metre that uses rhyme and an accentual (stress based) rather than quantititive (vowel length based) verse form.
In music, a sequence is a passage which is successively repeated at different pitches.
In dance, a sequence is a predefined series of movements.