北ほく斗とほくとFreq.FrequencyTop 10,000Meanings1nounthe Big Dipper; the PloughabbreviationastronomyAbbreviation of 北斗七星. Used in astronomy and everyday contexts to refer to the well-known asterism.See also: 北斗七星今こん夜やは北ほく斗とがきれいに見みえる。Tonight the Big Dipper is clearly visible.