General happiness:
* ความสุข (Khwam sook) - This is the most common and general term for "happiness".
Feeling happy:
* มีความสุข (Mee khwam sook) - This literally translates to "having happiness" and implies feeling happy at a particular moment.
Joy and delight:
* ความยินดี (Khwam yin di) - This translates to "joy" or "delight" and is often used to express happiness at a specific event or occasion.
Contentment and satisfaction:
* ความพึงพอใจ (Khwam pưng por jai) - This translates to "contentment" or "satisfaction" and refers to a feeling of deep happiness and fulfillment.
Other options:
* สุข (Sook) - This is a shorter and more informal version of "ความสุข".
* มีความสุขมาก (Mee khwam sook maak) - This means "very happy" and emphasizes the intensity of the feeling.
Ultimately, the best way to say "happiness" in Thai depends on the specific situation and the emotion you want to convey.