In Anglo-Saxon meteorology several dots together can mean different
types of rain.
The ideogram consisting of three points arranged triangularly is used in mathematics and geometry between other signs, and then means thus, consequently, because of, or therefore.
In British meteorology it has been used to denote continuous moderate raining.
The same sign tattooed on the skin between the forefinger and the thumb is known as hobo dots in Sweden, and probably has a protective significance. The three hobo dots are said to be symbols of faith, hope and love.
Compare with in Group 26.
On US maps is sometimes used to signify a ruin. In other contexts the sign has been used to represent silver.
Dots arranged in a triangular form was a common sign in alchemy for sand or gravel. This triangle of dots often was crowned with a cross, like in . According to Diderot's Encyclopedia three dots in a triangular arrangement meant oil, but oil normally was represented by signs like .