The typographic arrow symbols look like arrows and show direction.

Often the down arrow shows a direction toward the observer. On road signs, the oncoming lane or sign action extends some distance in front of this sign (it prohibits the stop in front of the sign).

The up and down arrows can be printed on the [U:1F68C bus] doors. Up - forward, that is for you, and downward - the movement to meet you.

In the text, this means "below". On the site, it can be a link to scroll to the right area.

In Unicode, there are many options for tracing the [URL /en/collections/arrow-symbols/ down arrow for different occasions]. Pick your desired meaning.