Terminology

Target
Targets appear as colored pegs on the map. Each Target represents a location on the map with a defined radius within which subsequent searches will be done. Targets can be created in several ways, e.g., by tapping on the map, using the Contacts List button at the top of the screen or the Address Search button next to it. In all cases, a pin of a specific color appears at the Target's location on the map and a translucent circle representing the search radius appears around it (unless the radius visibility is turned off in Settings). Tapping on a Target will bring up additional information in a small window. Tapping on that window will bring up a second window of optional actions.
Pin
Pins appear as colored pegs on the map. Each Pin represents a search result. Tapping on a Pin will bring up additional information in a small window. Tapping on that window will bring up a second window of optional actions.
The term Search has a somewhat broad meaning in Evermore. It includes all the functions provided by the buttons in the left pane of the app -- e.g., Yelp searches initiated via any of the Search buttons or a Contacts search through your address book to find Contacts within the target areas you've created.
Location
The current location of the device.
Bearing
The direction that the device is currently travelling. This is not necessarily the direction that the device is facing.