Clues for the word "BUILDINGBLOCK"

We've had 4 crossword clues used for this word, and seen it 3 times in crosswords. It was last seen in Washington Post Sunday crossword on February 05, 2017.

Referring Clues

Fundamental piece
*Lego unit
... for an architect?
Lego bit, e.g.

Last Seen In

Washington Post Sunday - February 05, 2017
LA Times - July 25, 2014
King Syndicate - Thomas Joseph - January 14, 2005