notation

noun

1. (uncountable)The act, process, method, or an instance of representing by a system or set of marks, signs, figures, or characters.
2. (countable, uncountable)A system of characters, symbols, or abbreviated expressions used in an art or science or in mathematics or logic to express technical facts or quantities.

   “This section lists all algebraic notation used in this book.”

   “The notations used in the two books differed.”

   “There is no official notation in the game of Stratego. Several notations are available but rely on perfect information of the initial piece set-up of both players. We will use a chess-like notation for Stratego.”

   “Finally, using Devanagari, and native scripts more generally, has the benefit of elevating indigenous scripts and languages within the context of English-language lexicography, rather than foregrounding, or purely relying on, western linguistic notations which cater solely to a monolingual English audience.”

3. (countable)A specific note or piece of information written in such a notation.

   “She made a notation in the margin of the book.”