lego

Trademark.

1. a brand of plastic blocks that can be locked together, used as a children’s building toy.

noun, plural LEGOs. Also Lego, lego.

2. one of these blocks, usually as part of a set.

noun

1. trademark a construction toy consisting of plastic bricks and other standardized components that fit together with studs

1954, proprietary name (in use since 1934, according to the company), from Danish phrase leg godt “play well.” The founder, Ole Kirk Christiansen, didn’t realize until later that the word meant “I study” or “I put together” in Latin.