what is [LU] in search results?

[meanderingemu]

sorry for starting a new question for this, but i'm curious as in couldn't find it listed in the lexicon, and it had a big impact on the number of results on a search reducing from 42,to 8 

[spacecadet]

A while back Alamy said this

 

Edited January 3, 2020 by spacecadet

[meanderingemu]

45 minutes ago, spacecadet said:

A while back Alamy said this

 

 

 

thanks.  i guess search return didn't work because it's only 2 letters...