Final answer:
A suffix is a word part added to the end of a word to change its meaning, crucial for expanding vocabulary and comprehending word contexts.
Explanation:
A suffix is a word part added to the end of a word to create a new meaning. For example, in the word 'happiness,' the suffix '-ness' changes the word 'happy' to represent a state or quality.
Understanding suffixes is crucial in building vocabulary and grasping word meanings within context. It's essential to learn various suffix rules like the Rule of Simple Addition or the Twinning or Doubling Rule.
Learn more about Suffixes and their functions here:
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