across-from
This sign is a variation of the sign "opposite." It is used
when describing where things are. For example, the "DMV is across
from the Library." (By the way, DMV stands for Department of Motor
Vehicles.)
You would sign "library" 
then use a classifier "A" 
to show the location of the library. then hold the sign "opposite"
near where you signed the "classifier A." Then holding either
the right or left hand stationary, (whichever one is on the side of the
library) move the other hand in a slight arc to the other side of the street.
across-from
Sign: across-from
Synonyms:
Handshape:
Right Hand:
Left Hand:
Location:
Orientation:
Movement:
Non-Manual Marker:
Interpretations:
Inflections:
American Sign Language University ™ ASL resources by Lifeprint.com © Dr. William Vicars