See also: -tba Phrase TBA Initialism of to be announced. Initialism of to be arranged. Initialism of to be advised. Initialism of to be aired. Initialism of to be affirmed. Initialism of to be answered. Initialism of to be assigned. Initialism of to be assessed. Initialism of to be added. Translations to be announced Dutch: n.n.b. (nl) See also TBC TBD Noun TBA (countable and uncountable, plural TBAs) Initialism of tracheobronchial amyloidosis. Initialism of tert-butyl alcohol. (medicine) Initialism of traditional birth attendant. Anagrams ATB, abt., tab, B.T.A., BTA, Tab, bat, bat-, Bat-, ABT, abt, BAT