Yet.
Synonyms:
besides, further, hitherto, now, still, thus far.
Yet and still have many closely related senses, and, with verbs of past time, are often interchangeable; we may say "while he was yet a child," or "while he was still a child." Yet, like still, often applies to past action or state extending to and including the present time, especially when joined with as; we can say "he is feeble as yet," or "he is still feeble," with scarcely appreciable difference of meaning, except that the former statement implies somewhat more of expectation than the latter. Yet with a negative applies to completed action, often replacing a positive statement with still; "he is not gone yet" is nearly the same as "he is here still." Yet has a reference to the future which still does not share; "we may be successful yet" implies that success may begin at some future time; "we may be successful still" implies that we may continue to enjoy in the future such success as we are winning now.