An academic publication.
A room in a house intended for reading and writing; traditionally the private room of the male head of household.
The human face, bearing an expression which the observer finds amusingly typical of a particular emotion or state of mind.
Mental effort to acquire knowledge or learning.
Any particular branch of learning that is studied; any object of attentive consideration.
An endgame problem composed for artistic merit, where one side is to play for a win or for a draw.
An artwork made in order to practise or demonstrate a subject or technique.
A piece for special practice; an étude.
The act of studying or examining; examination.
One who commits a theatrical part to memory.
To endeavor diligently; to be zealous.
To acquire knowledge on a subject with the intention of applying it in practice.
To look at minutely.
To review materials already learned in order to make sure one does not forget them, usually in preparation for an examination.
To take a course or courses on a subject.
To fix the mind closely upon a subject; to dwell upon anything in thought; to muse; to ponder.
A treatise on this science.
The part of biology relating to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct.