building block
nounUK /ˈbɪl.dɪŋ blɒk/
US /ˈbɪl.dɪŋ blɑːk/
A building block is a small block you use to build things.
She stacked the building blocks into a tall tower.
RELATED WORDS
OTHER MEANINGS
2. One of the basic parts that something is made from.
Trust is a building block of a good friendship.
3. A basic idea or skill that helps you learn more.
Letters are the building blocks of reading.
4. A block-shaped material used in construction.
The workers laid building blocks to make the wall.