- Language, especially language peculiar to a particular group, field, or region; jargon or a dialect.
- 1846, Reynolds, George W.M., The Mysteries of London volume 1, London: George Vickers, page 327:
- "You see, ma'am, I can't divest myself of my professional lingo," observed Mr. Banks.
- 1913, Joseph C. Lincoln, chapter 12, in Mr. Pratt's Patients:
- She had Lord James' collar in one big fist and she pounded the table with the other and talked a blue streak. Nobody could make out plain what she said, for she was mainly jabbering Swede lingo, but there was English enough, of a kind, to give us some idee.
language peculiar to a particular group or region
- I lick (up)
- Aromanian: alingu, alindziri, lingu
- Friulian: lenzi
- Romanian: linge, lingere
- Sicilian: aḍḍiccari, alliccari, lìngiri
- Sardinian: linghere
- lingo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
- lingo in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
- lingo in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
- lingo in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette