a b c

Definition
  1. Noun:
    • The alphabet: "a b c" refers to the first three letters of the English alphabet, often used metonymically to represent the alphabet as a whole.
    • Basic principles or fundamentals: "a b c" denotes the simplest, most elementary concepts of a subject or field.
    • A railway guide: In historical British railway usage, "a b c" was a type of timetable or route guide organized alphabetically by station names.
Usage Examples
  • Noun:
    • Children learn their a b c before they can read. (The alphabet is taught first.)
    • He knows the a b c of economics, but not the advanced theories. (He understands the basic principles.)
    • The stationmaster consulted the a b c to find the next train to London. (A railway timetable guide.)
Advanced Usage
  • "the a b c of something": the most basic or fundamental knowledge about a subject.
    • You must master the a b c of chemistry before attempting complex reactions. (Learn the foundational concepts.)
Variants and Related Words

  • ABC (n): often written as a single word (ABC), meaning the alphabet or basic principles.

    • The ABC of gardening includes soil preparation and watering. (The fundamentals of gardening.)

  • ABCs (n, plural): the letters of the alphabet, especially as taught to children.

    • She is learning her ABCs. (She is memorizing the alphabet.)
Synonyms
  • Alphabet: the set of letters used in a writing system.
  • Basics: the simplest and most important facts or ideas.
  • Fundamentals: the core principles underlying a subject.
  • Rudiments: the first principles or elements of a subject.
Related Idioms

  • As easy as a b c: extremely simple or straightforward.

    • This recipe is as easy as a b c — anyone can make it. (Very simple to do.)

  • Not know one's a b c: to be ignorant of the most basic knowledge.

    • He cannot write a proper sentence; he doesn't know his a b c. (He lacks fundamental literacy.)