Tayabasin adjective 3noun 2forms 1 adjective3 •(Philippines) Of, or pertaining to Tayabas, Quezon. •(Philippines, old-fashioned) Of, or pertaining to Quezon. •(Philippines) Tagalog dialect spoken in Quezon. noun2 •(Philippines) A native or inhabitant of Tayabas, Quezon. •(Philippines, old-fashioned) A native or inhabitant of Quezon. formsTayabasins