abecedarium

Example:Learning the alphabet is the first step in teaching a child to read.

Definition:A set of letters, characters, or graphics used in a writing system.

Example:He had studied the lexicon extensively to prepare for the upcoming examination.

Definition:A comprehensive dictionary or a body of words and terms associated with a particular field.

Example:The teacher recommended a primer on grammar for his students to improve their writing skills.

Definition:A book or a short course intended to introduce the reader or student to a new subject or to teach them basic concepts in a subject.