Explanation:

- Word: Calm

- Calm refers to a state of peace, free from disturbance or agitation. It's about tranquility and ease.

- Options:

1. Cranky

- Means irritable or bad-tempered. It's more about agitation and the opposite of calm.

2. Relaxed

- Implies being free from tension and anxiety. It suggests a state of calm.

- Correct Answer: Relaxed

3. Joyful

- Indicates great happiness and delight. While positive, it does not specifically mean calm.

4. Clean

- Refers to being free from dirt, marks, or stains. Not related to calmness.

- Conclusion: "Relaxed" is the most suitable synonym for "Calm."