(US, insurance, business) An item to be used as a subcomponent and tested for safety by Underwriters Laboratories ("UL"); the item will have a special trademark of UL.
(US, insurance, business) An item to be used as a subcomponent and tested for safety by Underwriters Laboratories ("UL"); the item will have a special trademark of UL.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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(US) , a product-safety testing laboratory.
(Canada, standards, products, testing) , a product-safety testing laboratory.
In computing and internet slang, UL means to upload — the reverse of DL (download). It's been part of tech and file-sharing communities since the dial-up era, appearing on forums, FTP sites, and peer-to-peer networks where every byte of bandwidth mattered. Separately, UL also refers to Underwriters Laboratories, the US product-safety testing organization whose seal appears on electrical devices. Context tells you which one you're dealing with.
Unlimited Liability Corporation, a Canadian corporation designation