The term "inquire" on Instagram means the user wants others to ask for additional details that may not be provided in the post itself. It's often seen in captions for businesses, products, or promotions, like “Inquire for pricing” or “Inquire for availability.” Users are typically encouraged to send a direct message (DM) to get more specific information about what’s being advertised. This type of inquiry is popular among small businesses or influencers selling products, allowing them to offer personalized responses based on customer needs. It also creates an opportunity for more direct communication and potential customer engagement.