This is the 674th most frequent Catalan word.
construir
To build or construct.
Here 'construir' is used in its literal sense, meaning 'to build' or 'to construct' something tangible, like a building.
Ells volen construir una nova escola al barri.
They want to build a new school in the neighborhood.
In this context, 'construir' is used metaphorically to mean 'to build' or 'to establish' a connection or relationship.
Hem de construir una bona relació amb els nostres veïns.
We need to build a good relationship with our neighbors.
Here 'construir' is metaphorically used to imply 'to create' or 'to compose' a narrative or idea.