LANランFreq.FrequencyTop 10,000Meanings1nounlocal area network; LANcomputingStandard computing term for a local area network.社しゃ内ないのLANがダウンして、仕し事ごとにならない。The office LAN is down, so I can't get any work done.新あたらしいパソコンをLANに接せつ続ぞくする方ほう法ほうを教おしえてください。Please tell me how to connect the new computer to the LAN.