Happiness is a positive emotion that is often associated with pleasure, contentment, and fulfillment. Other synonyms for happiness include joy, bliss, elation, and ecstasy. Additionally, words like satisfaction, gratification, and comfort can also be used to describe a sense of happiness. Rest, on the other hand, refers to a state of relaxation or a break from work or other activities. Some synonyms for rest include relaxation, repose, respite, and leisure. Other words such as tranquility, serenity, and calmness can also be used to convey a sense of restfulness. Overall, there are many words that can be used to describe happiness and rest, and each one can help to capture a different aspect of these emotions and experiences.