Added 9 October 2026 eyeliner /ˈaɪˌlaɪnɚ/ noun Categories: ThingsRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about eyeliner at Wordnik → Where our words come from → Makeup applied to emphasize the shape of the eyes. Related Words: cosmeticpenpencilcrayoneyelinelashlinebrowlinedelineationeyemarkoutlineneatline Back to today's word