Select the word from the given options that is most similar in meaning to the word- ALLEVIATE

The correct option is Assuage.

Step-by-step Explanation:

1. Understand the meaning of the target word:
The word "alleviate" is a verb that means to make physical or mental pain, suffering, or a problem less severe, more bearable, or easier to endure. Common synonyms include relieve, ease, mitigate, and lessen.

2. Analyze the meanings of the given options:
- Swell: Means to become larger or rounder in size, typically as a result of accumulation of fluid or interest. It is unrelated to easing pain.
- Aggravate: Means to make a problem, injury, or offense worse or more serious. This is the opposite (antonym) of alleviate.
- Repel: Means to drive back, ward off, or resist something. It does not mean to make pain or suffering lighter.
- Assuage: Means to make an unpleasant feeling (like anger, pain, or grief) less intense, or to satisfy an appetite or desire. It is a direct synonym of alleviate.

3. Conclusion:
Since both "alleviate" and "assuage" share the core meaning of making something painful or difficult less intense or severe, "Assuage" is the word most similar in meaning to "Alleviate".