ABC

1. The English alphabet. (US, countable, uncountable) · Do you know your ABC? (US: Do you know your ABCs?)
2. The fundamentals of any subject. (countable, uncountable) · the ABC of finance
3. A straightforward, uniform playing style, often focusing on betting for value, folding weak hands, and avoiding bluffing. (countable, uncountable)

الجمع ABCs