tức là means "that is" (phrase). that is to say; in other words (used to explain or clarify what was just said).
How is tức là pronounced?
You can listen to tức là on this page in both Northern and Southern Vietnamese accents.
How is tức là used in a sentence?
For example: Anh ấy là giáo viên, tức là dạy học. (He is a teacher, that is to say, he teaches.); Tôi bận, tức là không thể đi. (I'm very busy, that is to say, I can't go.).
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