Longman Dictionary of Contemporary English homepage

user name

 noun
     
Related topics: Computers
user name also user ID [countable]
TD a name or special word that proves who you are and allows you to enter a computer system or use the Internet:
Please enter your user name and password and click 'OK'.
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?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary