L1

Linguistics.

1. first language; native language.

Example Sentences

A 14-year-old boy from Liverpool, who cannot be named for legal reasons, pleaded guilty to violent disorder at Clayton Square, Liverpool and was bailed on the condition he does not enter the L1, L2 or L3 postcode areas.

From BBC

And L1 stands for Lagrange point 1 - the exact place between the Sun and Earth where the spacecraft is heading.

From BBC

That destination - called L1 or Lagrange point 1 - is at 1% of the Earth-Sun distance.

From BBC

Once at L1, the spacecraft will unfold its wings.

From DOGO News

The cube-shaped spacecraft will orbit Earth for about 16 days before beginning its 110-day journey to its final destination — the L1 Lagrange point.

From DOGO News