Christmas tree

noun

1. an evergreen tree decorated at Christmas with ornaments and lights.

2. a control board or panel containing a variety of colored lights for indicating the status of various functions, elements, components, etc.

3. an elaborate arrangement of pipes, valves, etc., as for controlling the flow of oil or gas.

Christmas tree

noun

1. an evergreen tree or an imitation of one, decorated as part of Christmas celebrations

2. Also called: Christmas bush. any of various trees or shrubs flowering at Christmas and used for decoration

3. another name for pohutukawa

Word History and Origins

Origin of Christmas tree¹

An Americanism dating back to 1780–90