Langdons Language Institute, a language training facility in Trinidad and Tobago.
Levelled Literacy Interventions, teaching resources published by Heinemann, sequenced according to the Fountas and Pinnell reading levels
London Language Institute, an elite ESL school located in London, Ontario, Canada.
Long Lead Items: item of an assembly whose procurement should be anticipated because of its lead time.
Low latent inhibition (lli), a medical condition related to Latent inhibition which is concerned with the different observations that a stimulus adapts to.