Think of 'rudiments' as the building blocks needed to understand a bigger subject. Mastering the rudiments of grammar is essential before writing an essay.
Pro Tip 2/3
Early Learning
'Rudiments' often refers to what beginners learn when they start a new subject. He struggled with the advanced course because he skipped learning the rudiments.
Pro Tip 3/3
Vocabulary Context
Use 'rudiments' when discussing the initial, most important parts of a skill or knowledge area. She knows the rudiments of coding but has yet to work on complex projects.