Widgets
How to use
About LDOCE
Arbor Day
Arbor Day
an unofficial US holiday when people plant trees. Arbor Day is celebrated on different days in different states.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
Dictionary pictures of the day
Do you know what each of these is called?
Click on any of the pictures above to find out what it is called.
Explore our topic dictionary
Advertising and Marketing
Animals
Biology
Computers
Clothes
Daily Life
Education
Finance
Food
Grammar
Illness and Disability
Law
Music
School
Sport
Technology
Browse the dictionary
arbiter
noun
arbitrage
noun
arbitrary
adjective
arbitrate
verb
arbitration
noun
Arbor Day
arboreal
adjective
arboretum
noun
arbour
noun
arc
noun
arc welding
noun