abcs

/ˌeɪ bi ˈsiz/
noun
  1. The alphabet, especially as learned by young children.
    • The teacher sang the ABCs with the class every morning.
    • Knowing your ABCs is the first step to reading.
    • The toddler is learning her ABCs with colorful flashcards.
  2. The basic or fundamental principles of a subject.
    • This course covers the ABCs of personal finance.
    • Before you can cook well, you need to learn the ABCs of kitchen safety.
    • The book explains the ABCs of how a car engine works.
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