ex·pose Show Spelled[ik-spohz] Show IPA –verb (used with object), -posed, -pos·ing. 1. to lay open to danger, attack, harm, etc.: to expose soldiers to gunfire; to expose one's character to attack. 2. to lay open to something specified: to expose oneself to the influence of bad companions. 3. to uncover or bare to the air, cold, etc.: to expose one's head to the rain. 4. to present to view; exhibit; display: The storekeeper exposed his wares. 5. to make known, disclose, or reveal (intentions, secrets, etc.). 6. to reveal or unmask (a crime, fraud, impostor, etc.): to expose a swindler.