The term SMART TREE is composed of two words: SPRUCE (6 letters) and SMART (5 letters). The word SPRUCE is a type of evergreen tree that is native to the Northern Hemisphere. It is known for its conical shape, dense foliage, and reddish-brown bark. The word SMART is an acronym for Self-Monitoring, Analysis, and Reporting Technology. It is used to describe computer systems that are able to monitor their own performance and report any issues or errors to the user. Together, the two words form the term SMART TREE, which is used to describe a type of tree that has been outfitted with sensors and other technology to monitor its environment and health.