The Vietnamese word "lao xao" is an adverb that describes a noisy, chaotic, or bustling atmosphere. It can refer to situations where there is a lot of commotion, chatter, or a general sense of hubbub.
While "lao xao" primarily refers to noise and commotion, it can sometimes imply a sense of excitement or vitality in a busy atmosphere. However, it generally has a connotation of disorder or overwhelming noise rather than calmness or tranquility.