Longman Dictionary of Contemporary English homepage

parallel

3 verb
     
parallel3 past tense and past participle paralleled, present participle paralleling also parallelled, present participle parallelling British English [transitive] written
if one thing parallels another, they happen at the same time or are similar, and seem to be related:
The rise in greenhouse gases parallels the reduction in the ozone layer.
His career parallels that of his father.

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