A Japanese Phrase for Asking what a word means: "この言葉の意味を教えてください。"

"この言葉の意味を教えてください。" means "Could you tell me what this word means?" and it's the basic Japanese expression used for asking what a word means. It's very handy when studying and learning languages. To answer, you can say something like "「約束」という意味です。" (It means "promise."). You can keep the conversation going by reacting with something like "なるほど、ありがとうございます。" (I see, thank you).