Longman Dictionary of Contemporary English homepage

building block

 noun
     
Related topics: Toys
building block [countable]
1DHT a block of wood or plastic for young children to build things with
2

building blocks

[plural] the pieces or parts which together make it possible for something big or important to exist:
Amino acids are the building blocks of protein.
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