air fhichead

Numeral

 * 1) twenty-

Usage notes

 * Used behind the numerals for 1 - 19 and noun, if any.
 * trì - three
 * trì air fhichead - twenty-three
 * trì leabhraichean air fhichead - twenty-three books
 * trì deug air fhichead - thirty-three (vigesimal system, literally twenty-thirteen)