The crossword solution for the term 'inflatable thing' is 'EGO'. EGO is a Latin word meaning 'I' or 'SELF'. It is often used to refer to a person's sense of SELF-importance, SELF-esteem, and identity. In psychology, EGO is used to refer to the conscious mind, which mediates between the demands of the id, the superego, and reality. Inflatable things are objects that can be filled with air or gas to make them larger and more buoyant.