ULalso: ユーエルFreq.FrequencyTop 50,000Meanings1nounuploadcomputingComputing term; abbreviation of 'upload'. Often used in contrast with DL (download).See also: アップロードファイルのULが完かん了りょうしました。The file upload has completed.UL速そく度どが遅おそい。The upload speed is slow.