As andrewkim7878 mentioned above, "되" can't be considered alone, it would make sense only in a phrase or sentence. e.g. 되다(dictionary form, menjadi) 돼요(present tense) 되고 있어요(present progressive) 되었어요 or 됐어요(past tense) 될 거예요(future tense) 되게(adverb, sangat) etc... \^o^/

it means "Be"

Hello, Wanieyaniey. Frankly it is very hard to explain the meaning of 되. Basic meaning of 되 is "become or be changed" So to understand better you need to add some more elements of a sentence with 되.