The term 'ด้วยกัน (dûai gun)' is commonly used in Thai to express unity or togetherness in action or state, similar to the English phrases 'together' or 'with each other'. It is typically placed at the end of sentences to emphasize the collective involvement or participation in a particular action or situation. It is versatile and can be used with a wide range of verbs, adjectives, and phrases to convey the sense of performing actions or being in situations together.