Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Origin: clog 'to prevent an animal from moving by tying a wooden block to it' (14-19 centuries), from clog (noun); CLOG2

clog

1 verb
     
clog1 also clog up past tense and past participle clogged, present participle clogging [intransitive and transitive]
to block something or become blocked:
tourists whose cars clog the roads each summer
clog with
Over many years, the pipes had got clogged up with grease.
—clogged adjective:
clogged highways
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