LMC is an abbreviation for Library Media Center or Library Media Commons (some of our schools use variations on those terms). Again, welcome to LMC School. LMC, Luxury Marketing Council (est. LMC Meaning in School - What does LMC mean? The meaning of LMC is Lon Morris College and other meanings are located at the bottom which take place. Dear LMC Families: Today, we learned that school will NOT reopen on September 10th, but we will begin remotely on September 16th-18th.