We had a burnt out fluorescent light. I went to the local hardware store to buy a new bulb. I used the word ampoule (light bulb). The man behind the counter asked some clarifying questions and came to the conclusion I needed a tube. I chuckled that he called it simply a tube. Later we discovered it wasn’t just a burnt out light, the whole unit needed replaced. David went to the hardware store with all his vocabulary ready to go and knowing to use the word tube. He went and asked for the unit. The man asked some questions and came to the conclusion that David needed a Mazda Complete. The name brand is Mazda. David returned laughing and he played 20 guesses with me as to what he bought was called before he told me Mazda Complete. Thanks to my skillful husband we now have a working light again in our back room.