Final answer:
The word that best completes the sentence is 'aversion' which means a strong dislike or repugnance towards something.
Step-by-step explanation:
The vocabulary word that best completes the sentence is aversion. Aversion means a strong dislike or a feeling of repugnance towards something. In this context, it makes sense to avoid anything to which one has an aversion, indicating a strong negative feeling or repulsion towards that thing.
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