Correct spelling for the English word "toesin" is [tˈə͡ʊsɪn], [tˈəʊsɪn], [t_ˈəʊ_s_ɪ_n] (IPA phonetic alphabet).
An alarm-bell; the ringing of a bell for the purpose of giving an alarm.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.