siseo

== Spanish == === Pronunciation === IPA(key): /siˈseo/ [siˈse.o] Rhymes: -eo Syllabification: si‧se‧o === Etymology 1 === Deverbal from sisear. ==== Noun ==== siseo m (plural siseos) sss, hiss, hissing === Etymology 2 === See the etymology of the corresponding lemma form. ==== Verb ==== siseo first-person singular present indicative of sisear === Further reading === “siseo”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025