Select the most appropriate synonym of the word in bold.
We’d better watch our step and not give him any excuse to harass us further.

The correct answer is intimidate.

Step-by-step Explanation:

1. Analyze the Context:
The sentence is: "We’d better watch our step and not give him any excuse to harass us further."
Here, "harass" means to subject someone to aggressive pressure, intimidation, or persistent annoyance. The context suggests a hostile, threatening, or uncomfortable situation where they need to be careful not to provoke the person.

2. Evaluate the Options:
- betray: to expose one's country, a group, or a person to danger by treacherously giving information to an enemy. This does not match the meaning of "harass".
- intimidate: to frighten or overawe someone, especially in order to make them do what one wants, or to threaten/subject them to pressure. This is the closest synonym to "harass" in this context.
- relish: to enjoy greatly. This is completely unrelated.
- soothe: to gently calm, which is the opposite of harass.

3. Conclusion:
Therefore, the most appropriate synonym for "harass" among the given options is intimidate.