A downward pointing triangle is often used to represent "female".
yield
yield right of way
All three sided shapes are triangles irrespective of orientation. What would "upside down" mean anyway for a planar figure? An inveerted triangle A triangle with one point pointing south.
A triangle-shaped sign typically indicates a yield or warning. In many countries, a downward-pointing triangle signifies a yield sign, instructing drivers to slow down and give way to oncoming traffic. An upward-pointing triangle may indicate caution or a warning about potential hazards ahead. Always check local traffic regulations, as meanings can vary by region.
draw a triangle with the 1st point pointing straight up, and draw an upside down version of that on top of the first triangle.
See the legend. There's no standard "meaning" for any color on a map, though it's pretty common that blue means water.
The symbols for the four elements are: Earth (a downward-pointing triangle with a line through it), Air (an upward-pointing triangle), Fire (an upward-pointing triangle), and Water (a downward-pointing triangle). In alchemy, these symbols represent the fundamental building blocks of the universe and are used to describe the balance and interactions of these elements in nature and in the human body.
The upside-down triangle, often associated with the Sigil of Baphomet, symbolizes the inversion of traditional values and is linked to Satanism. Its shape, pointing downward, represents the material world and the embrace of earthly desires, contrasting with the upward-pointing triangle that symbolizes spiritual ascension. This inversion is emblematic of rebellion against conventional religious beliefs, particularly those of Christianity. As a result, the upside-down triangle has become a prominent symbol in various occult practices and representations of Satan.
low coolant level
I think the "Fallout Shelter" sign
Go down the hill.
The upside down purple triangle was actually used to identify Jehovah's Witnessess