Not a first edition, but something new, revised, having a new introduction by the author or someone else, but the first publication in its new form or by a new publisher.
Means not that the book is a first edition, but that something in this edition is new. For instance, the work may have been revised or have a new introduction.
A booksellers' term, indicating that although earlier editions of the book in question exist, this edition is the first to contain some feature, such a noteworthy set of illustrations, which is in itself desirable.
The first printing of a new version of a work; not the original first edition, but a later, revised work.
not a first edition, but something is new - new illustrations, new publisher, revised, new introduction etc.
Often a revised edition where something new has been added such as an introduction, foreword or new illustrations. It may have a different publisher, or appear in a different format. It is not however, a first edition.
Means not a first edition, but that something is new. It may be revised, have a new introduction by the author or someone else, or be the first publication in paperback form or the first by another publisher.
Is not a first edition, but something is new. It may be revised, have a new introduction by the author or someone else, be the first publication in paperback form, be the first illustrated edition or first by another publisher.