any high mountain
"The local legends speak of a mysterious creature that guards every alp in the snowy peaks."
A very high mountain. Specifically, one of the Alps, the highest chain of mountains in Europe.
"Researchers at the CERN lab are currently searching for evidence of an alp in their latest collision data."
Acronym of axion-like particle.
Initialism of Australian Labor Party.
"Before voting, she checked her party registration to confirm whether the ballot paper was marked with an alp for the Australian Labor Party."