Others
- Quatro de Fevereiro Airport (IATA code LAD), the largest airport in Angola, located in Luanda
- Language Acquisition Device, part of the human brain structure as proposed by Noam Chomsky
- Least absolute deviations, a mathematical optimization technique
- Land assembly district, a proposed legal regime for assembling land
- Local Address Data, a concept in digital electronics
Read more about this topic: LAD