A book intended to help the reader to identify wildlife, or other natural objects, in the field.

(education) An educator whose method is to provide students with occasional advice, assistance, and correction while allowing them to explore a subject area independently or by interacting among themselves; this educational method itself.

hand director

Synonym of tour guide

A rope hung from a balloon or dirigible so as to trail along the ground for about half its length, used to preserve altitude automatically, by variation of the length dragging on the ground, without loss of ballast or gas.

(historical) A directory of the names and addresses of the nobility and gentry in a town.

plural of guiding light

a book giving key notes and concepts upon which to base understanding.

A method of note-taking where one receives a sheet that already has the key points of a presentation or lecture written on it. However, keywords are replaced by blanks that must be filled in while listening to the presentation.

plural of guided missile