work

1) in the International Code of Zoological Nomenclature, any text whether published, unpublished, or carrying a disclaimer containing a name or other information bearing on nomenclature; an anonymous work is a published one where the name(s) of its author(s) cannot be determined from the contents of the work; an available work is a published one in which under the provisions of the International Code of Zoological Nomenclature, or by a ruling of the International Commission on Zoological Nomenclature, names or nomenclatural acts may be established; a conserved work is one that the Commission has ruled to be an available work; a rejected work is any work included by the Commission in the Official Index of Rejected and Invalid Works in Zoological Nomenclature; a suppressed work is any work that the Commission has ruled to be unpublished or unavailable; an unavailable work is a published work in which, under the provisions of the Code, or by ruling of the Commission, names or nomenclatural acts cannot be established; an unpublished work is a work that is not published within the meanings of the Code or which the Commission has ruled to be treated as unpublished

2) any written information such as a manuscript or a publication

3) any structure or impression resulting from the activity of an animal but not part of an animal, e.g. burrows, nests, etc

4) of fish, to be on the move