GNU Collaborative International Dictionary of English

Found one definition

      
dunno (dŭn‑nōˈ), phrase [Spelled as often pronounced in rapid or slurred speech.] A slang shortening of I don't know or don't know; as, “dunno where I lost my keys; Where'd he go?  I dunno.”.

[PJC]

Last match results

Ace, Apace, Bace, Dace, Face, Lace, Mace, Pac, Paca, Pace, Paced, Pacer, Pack, Paco, Pact, Pacu, Page, Pale, Pance, Pane, Pape, Pare, Pate, Pave, Paye, Peace, Pice, Place, Puce, Race, Space, Tace