amíg

Adverb

 * 1) as long as, while
 * 2)  until, till
 * 1)  until, till

Usage notes
Both of these translations may be correct depending on whether the verb that follows is negated.

is actually equivalent to the opposite of until in the same way that unless is the opposite of if. It specifies a case in which the statement of the main clause is not valid or the time period during which the event of the main clause persisted:

Sentences should be translated using the pronoun or wording that matches the intent of the speaker: is similar to until and  is similar to while.