Most Common:
* Volatile Organic Compounds: This is the most common meaning of VOC, especially in environmental contexts. These are organic chemicals that have a high vapor pressure at room temperature and can easily evaporate into the air.
* Voice of Customer: This is common in business and marketing, referring to the opinions and feedback of customers.
Less Common:
* Volunteer of the Year
* Vehicle Operating Costs
* Visual Object Classes (in computer vision)
* Value of Company
To understand the specific meaning of VOC, you need to consider the context in which it is used.