Nasalization affects how vowels sound; it's not just the usual 'nose block' sensation. Notice the nasalization in the French word 'bon' compared to its English equivalent.
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Diverse Usage
Different languages have unique nasalization patterns, which can change a word's meaning. Mastering nasalization can mean the difference between 'ano' (year) and 'ânus' (anus) in Portuguese.
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Subtle Distinctions
Sometimes, nasalization is slight and may only be recognized by native speakers. The nasalization in the English word 'sing' might be easily missed by learners.