Added 10 October 2026 ess /ˈɛs/ symbol Categories: Rare Words In Latin: es Wiktionary symbol ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about ess at Wordnik → Where our words come from → ISO 639-3 language code for Central Siberian Yupik. noun The name of the Latin script letter S/s. Something shaped like the letter S. (See esses) verb To move in a changing direction, forming the shape of a letter S. Related Words: einsteiniumsigmaletterhisprocsignalebsssepluralizerpriesttbs Back to today's word